Optical microcantilever consisting of channel waveguide for scanning near-field optical microscopy controlled by atomic force
| Autor: | K. Kato, Y. Mitsuoka, T. Sakuhara, Masataka Shinogi, Norio Chiba, Hiroshi Muramatsu, Susumu Ichihara, T. Niwa, Kunio Nakajima |
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| Rok vydání: | 2001 |
| Předmět: |
Histology
Materials science Channel (digital image) Physics::Instrumentation and Detectors business.industry Aperture Resolution (electron density) Bent molecular geometry Physics::Optics Near and far field Waveguide (optics) Computer Science::Other Pathology and Forensic Medicine law.invention Optics Optical microscope law Near-field scanning optical microscope business |
| Zdroj: | Journal of microscopy. 194(Pt) |
| ISSN: | 0022-2720 |
| Popis: | We develop a novel optical microcantilever for scanning near-field optical microscopy controlled by atomic force mode (SNOM/AFM). The optical microcantilever has the bent channel waveguide, the corner of which acts as aperture with a large tip angle. The resonance frequency of the optical microcantilever is 9 kHz, and the spring constant is estimated to be 0.59 N/m. The optical microcantilever can be operated in contact mode of SNOM/AFM and we obtain the optical resolution of about 200 nm, which is as same size as the diameter of aperture. We confirm that the throughput of optical microcantilever with an aperture of 170 nm diameter would be improved to be more than 10(-5). |
| Databáze: | OpenAIRE |
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