Near-Field NanoPhotonics Research Team

Near-field NanoPhotonics Research Team is developing near-field optical scanning microscopy, which overcomes the diffraction limit of a light (~250 nm in visible light) that is determined by the wavelength of the light. In order to confine photons in the nanoscale, we will establish the principle of nanophotonics specifically observed in the near-field corresponding to the mesoscopic scale, and develop the analytical system, which achieves <10 nm spatial resolution. We visualize several nanomaterials such as carbon nanotubes, DNA bases, and strained silicon substrate. In addition, we will develop near-field specific functional nano devices and investigate the devices by the near-field optical microscopy.

Research Fields

Physics / Engineering / Chemistry / Materials Sciences / Biology & Biochemistry

Research Subjects

• Near-field Nonlinear Nanophotonics
• Near-field Molecular Nanophotonics
• Near-field Nano-Electro-Optics
• Near-field Quantum Electronics
• Near-field THz Metamaterials

Publications

1. N. Hayazawa, T. Yano, S. Kawata,
   Higly reproducible tip-enhanced Raman scattering using an oxidized and metallized silicon tip as a tool for everyone
   J. Raman Spectrosc.43, 1177 (2012).
2. N. Hayazawa, K. Furusawa, and S. Kawata,
   Nanometric locking of the tight focus for optical microscopy and tip-enhanced microscopy
   Nanotechnology 23, 465203 (2012).
3. A. Taguchi, N. Hayazawa, K. Furusawa, H. Ishitobi, S. Kawata,
   Deep-UV tip-enhanced Raman scattering,
   J. Raman Spectrosc. 2009, 394, 1775.
4. K. Furusawa, N. Hayazawa, T. Okamoto, T. Tanaka, S. Kawata
   Generation of broadband longitudinal fields for applications to ultrafast tip-enhanced near-field microscopy
   Opt. Exp. 19, 25328 (2011).
5. A. Tarun, N. Hayazawa, H. Ishitobi, S. Kawata, M. Reiche, O. Moutanabbir
   Mapping the "Forbidden" Transverse-Optical Phonons in Single Strained Silicon (100) Nanowire
   Nano Lett. 11, 4780 (2011).
6. Furusawa, K., Hayazawa, N., and Kawata, S.:
   Two-beam multiplexed CARS based on a broadband oscillator
   J. Raman Spectrosc. 41, 840 (2010).
7. K. Furusawa,, N. Hayazawa, F. C. Catalan, T. Okamoto,, and Kawata, S.:
   Tip-enhanced broadband CARS spectroscopy and imaging using a photonic crystal fiber based broadband light source
   J. Raman Spectrosc.43, 656 (2012).
8. Moutanabbir, O., Reiche, M., Hähnel, A., Erfurth,W., Motohashi,M., Tarun, A., Hayazawa, N., Kawata, S.:
   UV-Raman imaging of the in-plane strain in single ultrathin strained silicon-on-insulator patterned structure
   Appl. Phys. Lett. 96, 233105 (2010).
9. Moutanabbir, O., Reiche, M., Hähnel, A., Erfurth,W., Gösele, U., Motohashi,M., Tarun, A., Hayazawa, N., Kawata S.:
   Nanoscale pattering-induced strain redistribution in ultrathin strained Si layer on oxide
   Nanotechnology 21, 134013 (2010).
10. Tarun, A., Hayazawa, Yano, T., and Kawata, S.:
    Tip-heating-assisted Raman spectroscopy at elevated temperature
    J. Raman Spectrosc. 42, 992 (2011).