| Experimental research on focusing property of radially polarized beam based on solid immersion lens | |
| Li, Qing ; Wang, Jia ; Xu, Jiying ; Xi, Jiefeng ; Jin, Guofan | |
| 2010-05-10 ; 2010-05-10 ; OCT 15-17, 2005 | |
| 会议名称 | OPTICAL REVIEW ; 5th Asia-Pacific Conference on Near-Field Optics (APNFO-5) ; Niigata, JAPAN ; Web of Science |
| 关键词 | near-field optics solid immersion lens (SIL) radially polarized beam evanescent Bessel beam virtual probe FIELD Optics |
| 中文摘要 | Realization of a near-field optical virtual probe based on an evanescent Bessel beam is strongly dependent on a radially polarized beam; this makes it essential to study the focusing property of the beam. In this paper, two experimental setups based on a fiber device and a liquid crystal device, respectively, are built to generate a radially polarized beam. This beam and an annular radially polarized beam are focused by means of a high numerical aperture objective and a solid immersion lens (SIL). Near-field distribution of the focus spot, the evanescent Bessel field, is experimentally measured with a scanning near-field optical microscope (SNOM). The full width at half maximum (FWHM) of the central peak of the evanescent Bessel field is about 200 nm in the close vicinity of the bottom surface of SIL. This has potential for use as a near-field optical virtual probe. (c) 2006 The Optical Society of Japan. |
| 会议录出版者 | OPTICAL SOC JAPAN ; TOKYO ; KUDAN-KITA BLDG 5F, 1-12-3, KUDAN-KITA CHIYODA-KU, TOKYO, 102, JAPAN |
| 语种 | 英语 ; 英语 |
| 内容类型 | 会议论文 |
| 源URL | [http://hdl.handle.net/123456789/19148]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | Li, Qing,Wang, Jia,Xu, Jiying,et al. Experimental research on focusing property of radially polarized beam based on solid immersion lens[C]. 见:OPTICAL REVIEW, 5th Asia-Pacific Conference on Near-Field Optics (APNFO-5), Niigata, JAPAN, Web of Science. |
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