| Presentation | 2009-01-29 Focusing properties of beams generated by two-dimensional photonic-crystal laser Kyoko KITAMURA, Kyosuke SAKAI, Yoshitaka KUROSAKA, Wataru KUNISHI, Eiji MIYAI, Dai OHNISHI, Susumu NODA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | For many applications in optics, such as high-resolution observation with optical microscopy, high-density optical data storage, and optical trapping, it is desired to have tailored laser beams that can realize ultra-small focal spot. We had demonstrated two-dimensional photonic-crystal lasers can tailor output beam patterns and their polarization. Among these beam patterns, radially or azimuthally polarized doughnut beams are expected to have different intensity profiles at the focus due to their individual polarization. Here, we theoretically and experimentally study these interesting focusing properties. Moreover, we successfully demonstrate that a very small focal spot can be obtained using a radially polarized narrow ring beam. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | two-dimensional photonic-crystal laser / beam pattern / cylindrical vector beam / focusing properties |
| Paper # | PN2008-43,OPE2008-146,LQE2008-143 |
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| Conference Information | |
| Committee | LQE |
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| Conference Date | 2009/1/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Lasers and Quantum Electronics (LQE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Focusing properties of beams generated by two-dimensional photonic-crystal laser |
| Sub Title (in English) | |
| Keyword(1) | two-dimensional photonic-crystal laser |
| Keyword(2) | beam pattern |
| Keyword(3) | cylindrical vector beam |
| Keyword(4) | focusing properties |
| 1st Author's Name | Kyoko KITAMURA |
| 1st Author's Affiliation | Department of Electronic Science and Engineering, Kyoto University() |
| 2nd Author's Name | Kyosuke SAKAI |
| 2nd Author's Affiliation | Department of Electronic Science and Engineering, Kyoto University:Kyoto University Pioneering Research Unit for Next Generation |
| 3rd Author's Name | Yoshitaka KUROSAKA |
| 3rd Author's Affiliation | Department of Electronic Science and Engineering, Kyoto University |
| 4th Author's Name | Wataru KUNISHI |
| 4th Author's Affiliation | Department of Electronic Science and Engineering, Kyoto University:Photonics Research and Development Center, ROHM Co., Ltd. |
| 5th Author's Name | Eiji MIYAI |
| 5th Author's Affiliation | Department of Electronic Science and Engineering, Kyoto University:Photonics Research and Development Center, ROHM Co., Ltd. |
| 6th Author's Name | Dai OHNISHI |
| 6th Author's Affiliation | Department of Electronic Science and Engineering, Kyoto University:Photonics Research and Development Center, ROHM Co., Ltd. |
| 7th Author's Name | Susumu NODA |
| 7th Author's Affiliation | Department of Electronic Science and Engineering, Kyoto University |
| Date | 2009-01-29 |
| Paper # | PN2008-43,OPE2008-146,LQE2008-143 |
| Volume (vol) | vol.108 |
| Number (no) | 419 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |