High Spatial Resolution of Near-field Scanning Optical Microscopy using Force Detection and Investigation of Imaging Mechanism with Atomic Resolution

• Project/Area Number: 17K19079
• Research Category: Grant-in-Aid for Challenging Research (Exploratory)
• Allocation Type: Multi-year Fund
• Research Field: Applied physics and engineering and related fields
• Research Institution: Osaka University
• Principal Investigator: Li Yanjun 大阪大学, 工学研究科, 准教授 (50379137)
• Project Period (FY): 2017-06-30 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000); Fiscal Year 2018: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000); Fiscal Year 2017: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
• Keywords: 近接場光学顕微鏡 / 超高分解能化 / 原子分解能 / 走査プローブ顕微鏡 / 光学顕微鏡 / 表面電位

Outline of Final Research Achievements

We investigated the method for measuring the optical near-field using the force detection with high sensitivity and high spatial resolution. We also investigated the mechanism of the atomic resolution imaging. Concretely, we investigated the contrast of the optical near-field image of Cu-phthalocyanine molecules adsorbed on α-Al2O3 (0001) surface of a prism. In the near-filed image, N atoms neighboring to Cu atoms were observed as bright spots. This experimental result strongly suggests that the imaging mechanism is due to the higher polarizability of atoms.

Academic Significance and Societal Importance of the Research Achievements

申請者は、微弱な力を高感度・高分解能に検出する技術の開発を長年推進してきた。本研究では、力検出を用いた近接場光学顕微鏡に使用されている様々な構成要素（例えば、変位検出センサーや周波数変調検出回路など）の超低ノイズ化を実現し、この近接場光学顕微鏡のさらなる超高感度化・超高分解能化に挑戦する。
また、原子レベルでの物質と光との相互作用は、これまでほとんど研究されていない。本研究では、原子分解能を有する光学顕微鏡の画像化機構を解明するという、これまで誰も成し得なかった究極の高い目標に挑戦する。

Research Products

• [Journal Article] Direct observation of atomic step edges on the rutile TiO2(110)-(1×1) surface using atomic force microscopy (2018)
  • Author(s): H. F. Wen, M. Miyazaki, Q. Zhang, Y. Adachi, Y. J. Li, and Y. Sugawara
  • Journal Title: Phys. Chem. Chem. Phys. Volume: 20 Issue: 44 Pages: 28331-28337
  • DOI: 10.1039/c8cp06156d
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Measurement and Manipulation of the Charge State of Adsorbed Oxygen Adatom on Rutile TiO2(110)-1×1 Surface by nc-AFM and KPFM (2018)
  • Author(s): Q. Zhang, Y. J. Li, H. F. Wen, Y. Adachi, M. Miyazaki, Y. Sugawara, R. Xu, Z. H. Cheng, J. Brndiar, L. Kantorovich, and I. Stich
  • Journal Title: Journal of American Chemical Society Volume: 140 Issue: 46 Pages: 15668-15674
  • DOI: 10.1021/jacs.8b07745
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Local characterization of mobile charge carriers by two electrical AFM modes: multi-harmonic EFM versus sMIM (2018)
  • Author(s): L. Lei, R. Xu, S. Ye, X. Wang, K. Xu, S. Hussain, Y. J. Li, Y. Sugawara, L. Xie, W. Ji, Z.H. Cheng
  • Journal Title: Journal of Physics Communications Volume: 2 Issue: 2 Pages: 025013-025013
  • DOI: 10.1088/2399-6528/aaa85f
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] table Contrast Mode on TiO2(110) Surface with Metal-Coated Tips Using AFM (2018)
  • Author(s): Y. J. Li, H. F. Wen, Q. Zhang, Y. Adachi, E. Arima, Y. Kinoshita, H. Nomura, Z. M. Ma, L. Kou, Y. Naitoh, Y. Sugawara, R. Xu, Z. H. Cheng
  • Journal Title: Ultramicroscopy Volume: １９１ Pages: 51-55
  • DOI: 10.1016/j.ultramic.2018.04.003
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Direct visualization of Oxygen Reaction with Paired Hydroxyl on TiO2(110) Surface at 78 K by Atomic Force Microscopy (2018)
  • Author(s): H. F. Wen, Q. Zhang, Y. Adachi, M. Miyazaki, Y. Naitoh, Y. J. Li, and Y. Sugawara
  • Journal Title: Journal of Physical Chemistry C Volume: 122 Issue: 30 Pages: 17395-17399
  • DOI: 10.1021/acs.jpcc.8b06289
  • Peer Reviewed
• [Journal Article] Fluorescence detection using optical waveguide collection device with high efficiency on assembly of nitrogen vacancy centers in diamond (2018)
  • Author(s): S.W. Zhang, Z.M. Ma, L. Qin, Y.P. Fu, Y.B. Shi, J. Liu, and Y.J. Li
  • Journal Title: Applied Physics Express Volume: 11 Issue: 1 Pages: 013007-013007
  • DOI: 10.7567/apex.11.013007
  • NAID: 210000136080
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Magnetometry for precision measurement using frequency-modulation microwave combined efficient photon-collection technique on an ensemble of nitrogen vacancy centers in diamond (2018)
  • Author(s): Z.M. Ma, S.W. Zhang, Y.P. FU, H. Yuan, Y.B. Shi, J. Gao, L. Qin, J. Tang, J. Liu and Y. J. Li
  • Journal Title: OPTICS EXPRESS Volume: 26 Issue: 1 Pages: 382-390
  • DOI: 10.1364/oe.26.000382
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Heterodyne Frequency Modulation Technique in Photoinduced Force Microscopy (2018)
  • Author(s): Junsuke Yamanishi, Yoshitaka Naitoh, Yan Jun Li and Yasuhiro Sugawara
  • Journal Title: Physicak Review Applied Volume: 9 Issue: 2 Pages: 1-5
  • DOI: 10.1103/physrevapplied.9.024031
  • Peer Reviewed
• [Journal Article] Separation of Atomic-Scale Spin Contrast on NiO(001) by Magnetic Resonance Force Microscopy (2017)
  • Author(s): E. Arima, Y. Naitoh, Y. J. Li, and Y. Sugawara
  • Journal Title: Journal of Physics: Condensed Matter Volume: 29 Issue: 40 Pages: 404001-404001
  • DOI: 10.1088/1361-648x/aa815d
  • Peer Reviewed
• [Presentation] Charge states of O2 adsorbed on rutile TiO2 surface by AFM/KPFS (2018)
  • Author(s): Y. J. Li, Y. Adachi, H. F. Wen, Q. Zhang, Y. Sugawara
  • Organizer: 5th Global Nanotechnology Congress and Expo
  • Int'l Joint Research / Invited
• [Presentation] Reversible bond formation between Oxygen atoms vis charge manipulation on rutile TiO2(110) surface (2018)
  • Author(s): Y. J. Li, H. F. Wen Q. Z. Zhang, Y. Adachi, and Y. Sugawara
  • Organizer: The 3rd Asia-Pacific Symposium on Solid Surfaces & Cross-Strait Symposium on Solid Surfaces (APSSS-3)
  • Int'l Joint Research / Invited
• [Presentation] The study of local dipole moment and contact potential difference on TiO2(110) surface by AFM (2018)
  • Author(s): Y. J. Li, H. F. Wen, Q. Z. Zhang, Y. Adachi, Y. Naitoh and Y. Sugawara
  • Organizer: 24th World Nano Conference
  • Int'l Joint Research / Invited
• [Presentation] The measurement of local dipole moment and local contact potential difference on rutile TiO2(110) surface by AFM with atomic resolution (2018)
  • Author(s): Y. J. Li, H. F. Wen Q. Z. Zhang, Y. Adachi, Y. Naitoh, and Y. Sugawara
  • Organizer: Nano 2018 conference
  • Int'l Joint Research / Invited
• [Presentation] The measurement of local dipole moment and local contact potential difference on rutile TiO2(110) surface by AFM (2018)
  • Author(s): Y. J. Li, H. F. Wen and Y. Sugawara
  • Organizer: 13th International Conference and Exhibition on Materials Science and Engineering, 4th Global nanotechnology Congress and Expo
  • Int'l Joint Research / Invited
• [Presentation] The study of local dipole moment and contact potential difference on TiO2(110) surface by AFM (2018)
  • Author(s): Y. J. Li, H. F. Wen, Q. Z. Zhang, Y. Adachi, Y. Naitoh and Y. Sugawara
  • Organizer: 23rd International Conference on Nanomaterials and Nanotechnology
  • Int'l Joint Research / Invited
• [Presentation] 金薄膜上量子ドットの光誘起力像の観測 (2018)
  • Author(s): 山西絢介、内藤賀公、李艶君、菅原康弘
  • Organizer: 第65回応用物理学春季学術講演会
• [Presentation] 光圧の測定と光誘起力顕微鏡の開発 (2017)
  • Author(s): 辻井大明、山西絢介、内藤賀公、李艶君、菅原康弘
  • Organizer: 2017年度 分子研研究会
• [Presentation] Photo-induced Force Microscopy Technique (2017)
  • Author(s): Junsuke Yamanishi, Yoshitaka Naitoh, Yanjun Li, Yasuhiro Sugawara
  • Organizer: The 8th International Symposium on Surface Science
  • Int'l Joint Research
• [Remarks] 大阪大学大学院工学研究科精密科学・応用物理学専攻 ナノ物性工学領域 菅原・李グループ
  • URL: http://nanophysics.ap.eng.osaka-u.ac.jp/
• [Remarks] 大阪大学大学院工学研究科応用物理学コース 菅原・李研究グループ
  • URL: http://nanophysics.ap.eng.osaka-u.ac.jp/