2025/02/27 更新

写真a

イトウ　ハルヒコ
伊藤　治彦
ITO HARUHIKO
所属
工学院 准教授
職名
准教授
外部リンク

学位

  • 博士（理学） （ 京都大学 ）

学歴

  • 京都大学

    - 1994年

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  • 京都大学   理学研究科   物理学第一

    - 1994年

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    国名： 日本国

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  • 京都大学   理学部   物理学

    - 1986年

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    国名： 日本国

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経歴

  • -:東京工業大学 大学院総合理工学研究科 助教授

    1999年

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  • -:Tokyo Institute of Technology Interdisciplinary Graduate School of Science and Engineering Associate Professor

    1999年

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  • :Tokyo Institute of Technology Interdisciplinary Graduate School of Science and Engineering Assistant Professor

    1998年 - 1999年

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  • :東京工業大学 大学院総合理工学研究科 助手

    1998年 - 1999年

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  • :Japan Science and Technology Corporation Fields and Reactions Researcher

    1996年 - 1999年

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  • :科学技術振興事業団「さきがけ研究21」 場と反応領域 研究者

    1996年 - 1999年

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  • :Kanagawa Academy of Science and Technology Photon Control Project Researcher

    1994年 - 1998年

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  • :神奈川科学技術アカデミー フォトン制御プロジェクト 研究員

    1994年 - 1998年

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▼全件表示

所属学協会

▼全件表示

書籍等出版物

  • Atom Deflector and Detector with Near-Field Light

    Progress in Nano-Electro-optics II  2004年 

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  • Atom Deflector and Detector with Near-Field Light

    Progress in Nano-Electro-optics II  2004年 

    　詳細を見る

  • 近接場原子光学パターニング

    ナノテクノロジーハンドブック  2003年 

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  • ナノ光工学ハンドブック；2.8節「原子への力学的作用」，11.1節「原子操作」

    朝倉書店  2002年 

    　詳細を見る

  • Near Field Nano/Atom Optics and Technology(共著)

    Springer  1998年 

    　詳細を見る

  • Near Field Nano/Atom Optics and Technology(共著)

    Springer  1998年 

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  • Near-field Nanophotonics Handbook

    1997年 

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  • 近接場ナノフォトニクスハンドブック(共著)

    オプトロニクス社  1997年 

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▼全件表示

MISC

  • Observation of cold atom output from an evanescent-light funnel

    A Takamizawa, H Ito, S Yamada, M Ohtsu

    APPLIED PHYSICS LETTERS   85 ( 10 )   1790 - 1792   2004年9月

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    記述言語：英語   出版者・発行元：AMER INST PHYSICS  

    We report the demonstration of an atom funnel composed of evanescent light. The flux intensity of cold Rb atoms output from a 240 mum exit hole was 7x10(7) atom/cm(2) s at a blue detuning of 1.2 GHz. Sisyphus cooling doubled the output efficiency. The estimated flux intensity was 10(12) atom/cm(2) s when the exit-hole diameter was 110 mum. (C) 2004 American Institute of Physics.

    DOI： 10.1063/1.1786362

    Web of Science

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  • Accumulative atom detection by magneto-optical trap for near-field optical funnel

    A Takamizawa, H Ito, S Yamada, M Ohtsu

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS   42 ( 6A )   3658 - 3661   2003年6月

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    記述言語：英語   出版者・発行元：INST PURE APPLIED PHYSICS  

    We use a magneto-optical trap as an integrating counter for descending cold atoms. In the case of cold Rb-87 atoms with an initial mean temperature of 9 muK, 60% of the total number of 2.6 x 10(7) are captured after a 26-cm free-fall and trapped for a long time of 270s. From the capture efficiency and the decay time, the minimum detectable flux intensity of a cold Rb-87 atomic beam is estimated to be 2 x 10(5) atom/cm(2)-s. The atom-counting system is used for detection and evaluation of a cold atomic beam produced out of a near-field optical funnel.

    DOI： 10.1143/JJAP.42.3658

    Web of Science

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  • A slit-type atom deflector with near-field light

    K Totsuka, H Ito, K Suzuki, K Yamamoto, M Ohtsu, T Yatsui

    APPLIED PHYSICS LETTERS   82 ( 10 )   1616 - 1618   2003年3月

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    記述言語：英語   出版者・発行元：AMER INST PHYSICS  

    We developed a near-field optical deflector for precise direction control of atomic motion using a dipole force. The blue-detuned, near-field light used to deflect atoms was generated near the edge of a 100-nm-wide slit and had a spatial distribution of 126 nm at a distance of 10 nm from the top edge. The deflection angle for a Rb atom was a function of light intensity, frequency detuning, and atomic velocity. (C) 2003 American Institute of Physics.

    DOI： 10.1063/1.1558222

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  • 近接場光を用いた原子の制御・操作

    伊藤治彦

    精密工学会誌   69 ( 2 )   183 - 187   2003年

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    記述言語：日本語   出版者・発行元：公益社団法人精密工学会  

    DOI： 10.2493/jjspe.69.183

    CiNii Books

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    その他リンク： https://jlc.jst.go.jp/DN/JALC/00163671888?from=CiNii

  • Fluorescence spectroscopy of Rb atoms with two-color optical near fields for a high-resolution slit-type detector

    K Totsuka, H Ito, M Ohtsu

    IEICE TRANSACTIONS ON ELECTRONICS   E85C ( 12 )   2093 - 2096   2002年12月

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    記述言語：英語   出版者・発行元：IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG  

    We introduce stepwise resonant excitation by two-color optical near fields in order to detect Rb atoms with a slit-type detector. Blue fluorescence of the second D-2 line is monitored for background-free detection. Feasibility of the method is shown from an experiment with a Rb vapor cell, where a sub-Doppler spectrum with the FWHM of 80 MHz is obtained. The detection efficiency is estimated at about 3% for cold Rb atoms.

    Web of Science

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  • Multireflection of cold atoms in a near-field optical funnel

    A Takamizawa, H Ito, M Ohtsu

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS   41 ( 10 )   6215 - 6218   2002年10月

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    記述言語：英語   出版者・発行元：INST PURE APPLIED PHYSICS  

    Multireflection of cold Rb atoms occurs inside a reversed triangular hollow prism with a blue-detuned optical near field. We examine it with a probe light beam. using the frequency detuning and the diameter of an excitation light beam as parameters, In the first bounce. the number density of the reflected atoms reaches a maximum of 10(6) atom/cm(3) at a blue detuning of 0.7 GHz when the beam diameter is 4 mm. The Rb atoms repeat reflection with a period of about 15 ms and an efficiency of 83% per bounce. A cold Rb atomic beam with a high flux of 4 x 10(11) atom/(cm(2).s) can be generated through a near-Field optical funnel composed of the prism.

    DOI： 10.1143/JJAP.41.6215

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  • High spatial resolution atom detector with two-color optical near fields

    K Totsuka, H Ito, T Kawamura, M Ohtsu

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS   41 ( 3A )   1566 - 1571   2002年3月

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    記述言語：英語   出版者・発行元：INST PURE APPLIED PHYSICS  

    We describe a slit-type detector for ground-state atoms with nanometer optical near fields. The detector with a slit width of 70 nm and a slit length of 100 mum is fabricated by processing a silicon-on-insulator wafer with photolithography and anisotropic etching. Measurement with a fiber probe of the intensity distribution on the slit reveals that the spatial resolution is 96 nm. Rubidium atoms can be selectively detected by means of two-step photoionization. The detection efficiency is estimated at 25% for Rb atoms with a mean velocity of 10 m/s. The atom detector can be used for atom deflection experiments with a fiber probe.

    DOI： 10.1143/JJAP.41.1566

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  • Atom Deflector with Optical Near Fields

    HARUHIKO ITO

    Technical Digest of Quantum Electronics and Laser Science Conference   66 - 67   2002年

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  • Atom Deflector with Optical Near Fields

    HARUHIKO ITO

    Technical Digest of Quantum Electronics and Laser Science Conference   66 - 67   2002年

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  • Atom Deflection and Detection with Optical Near Fields

    31 ( 10 )   755 - 757   2002年

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  • Multireflection of Cold Atoms in a Near-Field Optical Funnel

    Akifumi Takamizawa, Haruhiko Ito, Motoichi Ohtsu

    Jpn.J.Appl.Phys.   41 ( 10 )   6215 - 6218   2002年

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  • 光近接場による原子の偏向と検出

    伊藤治彦, 戸塚弘毅, 大津元一

    光学   31 ( 10 )   755 - 757   2002年

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  • Observation of cold-atom reflection in a near-field optical funnel

    A. Takamizawa, S. M. Iftiquar, H. Ito, M. Ohtsu

    Proceeding of 3^rd^ Asia-Pacific Workshop on a Near-Field Optics, Melbourne   2001年

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  • Excitation of a funnel-shape optical near field by the Laguarre-Gaussian doughnut beam

    S. M. Iftiquar, H. Ito, A. Takamizawa, M. Ohtsu

    Proceeding of 3^rd^ Asia-Pacific Workshop on a Near-Field Optics, Melbourne   2001年

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  • A slit-type near-field optical detector for neutral atoms with high sensitivity and nanometric resolution

    K. Totsuka, H. Ito, T. Kawamura, T. Yatsui, M. Ohtsu

    Technical Digest - Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, QELS 2001   110 - 111   2001年

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    記述言語：英語   出版者・発行元：Institute of Electrical and Electronics Engineers Inc.  

    Summary form only given. We have proposed deflection by an optical near field on a fiber probe to control atoms with high spatial accuracy. In this case, the deflection angle is estimated to be 0.1 degree for a Rb atom with an incident velocity of 10 m/s. It leads to the deviation of 10 μm from the incident axis at 1 cm. in the downstream. To detect the deflected atoms with an accuracy of 1%, we need the spatial resolution of 100 nm. However, a commercial detector such as MCP has a low resolution of 50 μm at most and the highest resolution that has been reported is 1 μm to our knowledge. In addition, these are applied to metastable atoms and have less detection efficiency for the ground state atoms we manipulate. For drastic improvement, we present here a slit-type atom detector with a nanometric lateral resolution. Since the number of atoms deflected by the optical near field is very small, it is important to detect atoms with high efficiency. For this purpose, we use photoionization with two-color optical near fields.

    DOI： 10.1109/QELS.2001.961923

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  • Near-field optical potential for a neutral atom

    HARUHIKO ITO

    Physical Review A   63 ( 1 )   013806   2001年

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  • Tunable doughnut light beam for a near-field optical funnel of atoms

    SM Iftiquar, H Ito, M Ohtsu

    CLEO(R)/PACIFIC RIM 2001, POSTDEADLINE PAPER   34 - 35   2001年

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    記述言語：英語   出版者・発行元：IEEE  

    A doughnut-shaped Laguerre-Gaussian (LG) beam has been generated through interference of two spherical waves. The beam has a 5 mm bright ring and a 250-microns dark center suitable for our atom funnel experiment. The power conversion efficiency from a Gaussian mode to the LG mode is about 50%.

    Web of Science

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  • Observation of cold-atom reflection in a near-field optical funnel

    A. Takamizawa, S. M. Iftiquar, H. Ito, M. Ohtsu

    Proceeding of 3^rd^ Asia-Pacific Workshop on a Near-Field Optics, Melbourne   2001年

    　詳細を見る

  • Excitation of a funnel-shape optical near field by the Laguarre-Gaussian doughnut beam

    S. M. Iftiquar, H. Ito, A. Takamizawa, M. Ohtsu

    Proceeding of 3^rd^ Asia-Pacific Workshop on a Near-Field Optics, Melbourne   2001年

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  • Near-field optical potential for a neutral atom

    HARUHIKO ITO

    Physical Review A   63 ( 1 )   013806   2001年

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  • Generation of a cold atomic beam with a near-field optical funnel

    A Takamizawa, H Ito, M Ohtsu

    CLEO(R)/PACIFIC RIM 2001, VOL I, TECHNICAL DIGEST   1   512 - 513   2001年

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    記述言語：英語   出版者・発行元：IEEE  

    A cold Rb atomic beam with a low velocity of 0.10 m/s and a dense flux of 8.3x10(12) atom.cm(2)/S can be generated from a magneto-optical trap by an atom funnel.

    Web of Science

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  • Near-field optical detection of atoms with high sensitivity and high spatial resolution

    H Ito, K Totsuka, T Kawamura, T Yatsui, M Ohtsu

    CLEO(R)/PACIFIC RIM 2001, VOL I, TECHNICAL DIGEST   1   514 - 515   2001年

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    記述言語：英語   出版者・発行元：IEEE  

    We describe an atom detector with two-color optical near fields designed for deflection experiments. The sensitivity is estimated to be about 10 % for both photoionization and resonant excitation schemes using a slit-type probe.

    Web of Science

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  • Nanofabrication and atom manipulation by optical near-field and relevant quantum optical theory

    M Ohtsu, K Kobayashi, H Ito, GH Lee

    PROCEEDINGS OF THE IEEE   88 ( 9 )   1499 - 1518   2000年9月

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    記述言語：英語   出版者・発行元：IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC  

    Recent progress on application of interactions between optical near-field and nanoscale materials and atoms is reviewed Photochemical vapor deposition of Zn dots and lines with the size of sub-100 nm has been realized by using an ultraviolet optical near field. Deposition of nanoscale ZnO is also revealed Manipulation of atoms is then described to control the thermal motion of atoms in high vacuum. Experimental and theoretical results of manipulation by rising optical near field generated on a prism surface, hollow fiber and fiber probe are presented. Finally quantum theoretical treatment of optical near field is given.

    DOI： 10.1109/5.883321

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  • High Efficiency Excitation of Cylindrical Optical Near Fields for Atom Guidance

    HARUHIKO ITO

    Japanese Journal of Applied Physics   39 ( 12A )   6737 - 6742   2000年

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  • High Efficiency Excitation of Cylindrical Optical Near Fields for Atom Guidance

    HARUHIKO ITO

    Japanese Journal of Applied Physics   39 ( 12A )   6737 - 6742   2000年

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  • Near-Field Optics

    HARUHIKO ITO

    Physics, Davices, and Information Processing, Proceedings of SPIE   1999年

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  • Precise control of atoms with optical near fields

    HARUHIKO ITO

    deflection and trap(共著)   1999年

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  • Near-Field Optics

    HARUHIKO ITO

    Physics, Davices, and Information Processing, Proceedings of SPIE   1999年

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  • Precise control of atoms with optical near fields

    HARUHIKO ITO

    deflection and trap(共著)   1999年

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  • Precise control of atoms with optical near fields: deflection and trap

    B Ito, A Takamizawa, H Tanioka, M Ohtsu

    NEAR-FIELD OPTICS: PHYSICS, DEVICES, AND INFORMATION PROCESSING   3791   2 - 9   1999年

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    記述言語：英語   出版者・発行元：SPIE-INT SOC OPTICAL ENGINEERING  

    We present a new scheme of atom manipulation by means of a sharpened optical fiber with near-field light. In particular, we discuss the feasibility of deflecting and trapping Rb atoms. The optical potential produced by the dipole force is estimated from numerical calculations based on the Yukawa-type intensity distribution. We show that a slow Rb atom can be deflected at a large deflection angle. A static atom trap can be made near the tip of a sharpened fiber. A cold Rb atom is captured at the minimum of the trap potential composed of the repulsive optical potential and the attractive van der Waals potential. A spatial intensity distribution of an optical near field produced near the tip of a protrusion-type fiber is measured in the fiber-to-probe configuration with a shear-force technique. We also describe an atom funnel to form a cold atomic beam required for the near-field light manipulation.

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  • 近接場光を用いた原子の制御・操作

    伊藤治彦, 大津元一

    日本物理学会講演概要集   54   109   1999年

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  • 近接場光を用いた原子の制御

    伊藤治彦, 大津元一

    光学   28   610 - 615   1999年

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  • Near field optical atom manipulation(共著)

    HARUHIKO ITO

    Far-and Near-Field Optics : Its Physics and Information Processing, Proceedings of SPIE   1998年

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  • Near field optical atom manipulation(共著)

    HARUHIKO ITO

    Far-and Near-Field Optics : Its Physics and Information Processing, Proceedings of SPIE   1998年

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  • Evanescent-light induced atom-guidance using a hollow optical fiber with light coupled sideways

    H Ito, K Sakaki, W Jhe, M Ohtsu

    OPTICS COMMUNICATIONS   141 ( 1-2 )   43 - 47   1997年8月

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    記述言語：英語   出版者・発行元：ELSEVIER SCIENCE BV  

    This work presents a new way useful for guiding of cold atoms with a hollow optical fiber escorted by blue-detuned evanescent light. To induce an atomic mirror-tunnel, we couple a guide-laser beam via total internal reflection from the side to the core of a hollow fiber with a facet ground at an angle of 45 degrees. The guiding of Rb atoms is demonstrated with complementary detection by means of surface-ionization and two-step photoionization. The efficiency of the lateral light-coupling is also estimated from both experiment and numerical analysis. (C) 1997 Elsevier Science B.V.

    DOI： 10.1016/S0030-4018(97)00217-4

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  • Evanescent-light induced atom guidanceusing a hollow optical fiber with light coupled sideways(共著)

    HARUHIKO ITO

    Optics Communications   141 ( 1-2 )   43 - 47   1997年8月

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  • Evanescent-light guiding of atoms through hollow optical fiber for optically controlled atomic deposition(共著)

    HARUHIKO ITO

    Applied Physics Letters   70 ( 19 )   2496 - 2498   1997年

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  • 光近接場を用いた原子の誘導(共著)

    伊藤治彦

    レーザー研究   25 ( 10 )   682 - 686   1997年

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    記述言語：日本語   出版者・発行元：The Laser Society of Japan  

    Optical near field realizes the precise control of atomic motion. As the first step, guiding of atoms through micron-sized hollow optical fiber is demonstrated. The two-step laser-photoionization spectroscopy shows the frequency dispersion properties of dipole interaction between atoms and optical near field. The species- and state-selective guidance is applied to in-line spatial separation of two stable Rb isotopes. In addition, the cavity QED (Quantum Electrodynamics) effect inside a dielectric cylinder is observed for the first time. The atom fiber has the faculty of carrying atoms to an arbitrary point over a long distance and then is useful as a novel scheme of optically controlled atomic deposition. The feasibility of creating dot-shaped nano-scale structures is illustrated through measurement of spatial distribution of the guided atom flux. Finally, a method of manipulating atoms beyond the diffraction limit of light waves is presented including sharpened optical fibers and an atomic funnel with optical near field.

    DOI： 10.2184/lsj.25.682

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  • Atomic funnel with evanescent light(共著)

    HARUHIKO ITO

    Physical Review A   56 ( 1 )   712 - 718   1997年

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  • Lateral light-coupling for evanescent-field guidingof cold atoms(共著)

    HARUHIKO ITO

    IEEE Technical Digest   29 - 30   1997年

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  • Evanescent-lightatom guidancein the sub-wavelength region beyond the diffraction limit(共著)

    HARUHIKO ITO

    IEEE Technical Digest   10 - 11   1997年

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  • Evanescent-light guiding of atoms through hollow optical fiber for optically controlled atomic deposition(共著)

    HARUHIKO ITO

    Applied Physics Letters   70 ( 19 )   2496 - 2498   1997年

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  • 原子を導く光のトンネルーエバネッセント光による原子の制御-(共著)

    伊藤治彦

    現代化学   311 ( 311 )   49 - 55   1997年

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    記述言語：日本語   出版者・発行元：東京化学同人  

    CiNii Books

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  • Atom guidance with optical near field

    HARUHIKO ITO

    The Review of Laser Engineering   25   682 - 686   1997年

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  • Atomic funnel with evanescent light(共著)

    HARUHIKO ITO

    Physical Review A   56 ( 1 )   712 - 718   1997年

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  • Evanescent light guidinging hollow optical fibers for atom deposition(共著)

    HARUHIKO ITO

    1997 OSA Technical Digest Series   12   126 - 127   1997年

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  • Atom guidance using evanescent waves in small hollow optical fibers and its applications

    H Ito, K Sakaki, W Jhe, M Ohtsu

    ATOM OPTICS   2995   138 - 145   1997年

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    記述言語：英語   出版者・発行元：SPIE - INT SOC OPTICAL ENGINEERING  

    We report the recent progress of the experiments on guiding atoms by evanescent waves in micron-sized hollow optical fibers. The lateral manipulation accuracy is enhanced up to 1 micron with a large increase of more than 50 times on the guided atom flux. Moreover, the frequency tuning eanbles the fine control of the guided flux with a numerical accuracy of 10 atom/s. The atom-guidance scheme is applied to in-line isotope separation on rubidium atoms and measurement of the cavity quantum electrodynamic effect in a cylindrical dielectric. In addition, the feasibility of fabricating micron-sized structures with nanometric depth is discussed including the manipulation of a small number of laser-cooled atoms.

    DOI： 10.1117/12.273749

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  • Atom guidanceusing evanescent waves in small hollow optical fibers and its applications(共著)

    HARUHIKO ITO

    Atom Optics, Proceedings of SPIE   2995   138 - 145   1997年

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  • Evanescent-lightatom guidancein the sub-wavelength region beyond the diffraction limit(共著)

    HARUHIKO ITO

    IEEE Technical Digest   10 - 11   1997年

    　詳細を見る

  • Evanescent light guidinging hollow optical fibers for atom deposition(共著)

    HARUHIKO ITO

    1997 OSA Technical Digest Series   12   126 - 127   1997年

    　詳細を見る

  • Lateral light-coupling for evanescent-field guidingof cold atoms(共著)

    HARUHIKO ITO

    IEEE Technical Digest   29 - 30   1997年

    　詳細を見る

  • Spectroscopy of atoms guided by evanescent waves in cylindrical-corehollow fibers(共著)

    HARUHIKO ITO

    Atom Optics and Atom Interferometry   PW1   1996年

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  • Atomic funnel with evanescent waves(共著)

    HARUHIKO ITO

    1996 OSA Technical Digest Series   10   91 - 92   1996年

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  • Experiments on atom guidance with evanescent waves(共著)

    HARUHIKO ITO

    1996 OSA Technical Digest Series   2 - 3   1996年

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  • Laser spectroscopy of atoms guided by evanescent waves in micron-sized hollow optical fibers(共著)

    HARUHIKO ITO

    Physical Review Letters   76 ( 24 )   4500 - 4503   1996年

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  • 光ファイバーで原子を運ぶ

    伊藤治彦

    Isotope news   505   12 - 13   1996年

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    記述言語：日本語  

    CiNii Books

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  • Spectroscopy of atoms guided by evanescent waves in cylindrical-corehollow fibers(共著)

    HARUHIKO ITO

    Atom Optics and Atom Interferometry   PW1   1996年

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  • Atomic funnel with evanescent waves(共著)

    HARUHIKO ITO

    1996 OSA Technical Digest Series   10   91 - 92   1996年

    　詳細を見る

  • Laser spectroscopy of atoms guided by evanescent waves in micron-sized hollow optical fibers(共著)

    HARUHIKO ITO

    Physical Review Letters   76 ( 24 )   4500 - 4503   1996年

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  • Experiments on atom guidance with evanescent waves(共著)

    HARUHIKO ITO

    1996 OSA Technical Digest Series   2 - 3   1996年

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  • Optical guidance of neutral atoms using evanescent waves in a cylindrical-core hollow fiber: Theoretical approach

    H Ito, K Sakaki, T Nakata, WH Jhe, M Ohtsu

    ULTRAMICROSCOPY   61 ( 1-4 )   91 - 97   1995年12月

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    記述言語：英語   出版者・発行元：ELSEVIER SCIENCE BV  

    An atomic waveguide made by a cylindrical-core hollow fiber is described using numerical analyses in the weakly guiding approximation, We describe a potential barrier made up of the optical potential due to evanescent waves and the attractive potential due to cavity QED effects. The feasibility of atomic guidance experiments with a Rb beam is discussed in terms of an evaluation of the potential barrier including interference effects.

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  • Optical guidance of neutral atoms using evanescent waves in a cylindrical-core hollow fiber : theoretical approach(共著)

    HARUHIKO ITO

    Ultramicroscopy   61 ( 1-4 )   91 - 97   1995年12月

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    記述言語：英語  

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  • Optical potential for atom guidancein a cylindrical-corehollow fiber(共著)

    HARUHIKO ITO

    Optics Communications   115 ( 1-2 )   57 - 64   1995年3月

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    記述言語：英語   掲載種別：記事・総説・解説・論説等（学術雑誌）  

    DOI： 10.1016/0030-4018(95)00003-Q

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  • OPTICAL-POTENTIAL FOR ATOM GUIDANCE IN A CYLINDRICAL-CORE HOLLOW-FIBER

    H ITO, K SAKAKI, T NAKATA, W JHE, M OHTSU

    OPTICS COMMUNICATIONS   115 ( 1-2 )   57 - 64   1995年3月

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    記述言語：英語   掲載種別：記事・総説・解説・論説等（学術雑誌）   出版者・発行元：ELSEVIER SCIENCE BV  

    We describe a practical atomic waveguide using a cylindrical-core hollow fiber. Theoretical analyses of propagating field modes are presented for a multimode fiber. An evanescent wave leaked out to the hollow region is shown to produce a deep optical potential enough to guide atoms with low coupling laser power under an optimal blue-detuning determined by fiber parameters, exciting mode and azimuthal angle. The excitation of an HE(11) mode required for stable atomic guidance in the multimode hollow fiber is experimentally realized with the power-coupling efficiency of more than 10%.

    DOI： 10.1016/0030-4018(95)00003-Q

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  • Optical guidance of neutral atoms using evanescent waves in a cylindrical-core hollow fiber(共著)

    HARUHIKO ITO

    Near Field Optics-3   8   161 - 162   1995年

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  • Atomic waveguide using evanescent waves in a hollow fiber(共著)

    HARUHIKO ITO

    1995 OSA Technical Digest Series   16   155 - 156   1995年

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  • Atomic waveguide using evanescent waves in a hollow fiber(共著)

    HARUHIKO ITO

    1995 OSA Technical Digest Series   16   155 - 156   1995年

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  • Optical guidance of neutral atoms using evanescent waves in a cylindrical-core hollow fiber(共著)

    HARUHIKO ITO

    Near Field Optics-3   8   161 - 162   1995年

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  • Accumulative transfer of transverse magneticmoment between spin-locked Rb and Cs atoms(共著)

    HARUHIKO ITO

    Journal of the Physical Society of Japan   63 ( 4 )   1337 - 1344   1994年4月

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  • ACCUMULATIVE TRANSFER OF TRANSVERSE MAGNETIC-MOMENT BETWEEN SPIN-LOCKED RB AND CS ATOMS

    H ITO, T ITO, T YABUZAKI

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   63 ( 4 )   1337 - 1344   1994年4月

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    記述言語：英語   出版者・発行元：PHYSICAL SOC JAPAN  

    We propose an efficient method of collisional transfer of transverse magnetic moment between different kinds of atoms using the spin-locking technique. Demonstrating experiments with a rotating or an oscillating rf field are carried out on a Rb-85-Cs-133 vapor, and the transfer of a large amount of the transverse magnetic moment is observed when the amplitude H-1 of the rf field is comparable to the static magnetic field strength H-0. The H-1-dependence of the transfer, in the case of the oscillating rf field, is not simple, because of the Bloch-Siegert shift and associated resonance effects. The transfer of the transverse magnetic moment under the strong rf field is numerically analyzed with the Bloch equations for Rb-85 and Cs-133 coupled through spin-exchange collisions.

    DOI： 10.1143/JPSJ.63.1337

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  • Spin-polarization by optical pumping with selective reflection(共著)

    HARUHIKO ITO

    Journal of the Physical Society of Japan   62 ( 6 )   1951 - 1963   1993年

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  • Spin-polarization by optical pumping with selective reflection(共著)

    HARUHIKO ITO

    Journal of the Physical Society of Japan   62 ( 6 )   1951 - 1963   1993年

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▼全件表示

受賞

  • 丸文学術賞

    2000年  

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    受賞国：日本国

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  • 日本物理学会論文賞

    1997年  

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    受賞国：日本国

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共同研究・競争的資金等の研究課題

  • 光近接場を用いた原子操作に関する研究

    1994年 - 2002年

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    資金種別：競争的資金

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  • Study on atom manipulation using optical near fields

    1994年 - 2002年

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    資金種別：競争的資金

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