標題: | Direct focusing modifications of elliptical Gaussian beam by non-circular apertures |
作者: | Chan, SH Shiue, SG Lu, MH 光電工程學系 Department of Photonics |
公開日期: | 1-十一月-1998 |
摘要: | For focusing the elliptical Gaussian beam directly, the effects of a non-circular aperture on the focusing properties are studied. The focusing properties for different shapes of apertures, which include a circle, an ellipse and a rectangle, are calculated and compared. Moreover, for different elliptical Gaussian beams, an empirical aperture selection rule that can be used to circularize the focusing spot is proposed. The energy transmission ratios are also considered in this paper. |
URI: | http://hdl.handle.net/11536/31797 |
ISSN: | 0950-0340 |
期刊: | JOURNAL OF MODERN OPTICS |
Volume: | 45 |
Issue: | 11 |
起始頁: | 2379 |
結束頁: | 2387 |
顯示於類別: | 期刊論文 |