Simultaneous generation of helical beams with linear and radial polarization by use of a segmented half-wave plate.
Simultaneous generation of helical beams with linear and radial polarization by use of a segmented half-wave plate.
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DOI：
10.1364/ol.33.000399
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发表时间：
2008-02
期刊：
影响因子：
3.6
通讯作者：
H. Kawauchi;Y. Kozawa;S. Sato;Takashi Sato;S. Kawakami
中科院分区：
文献类型：
--
作者：
H. Kawauchi;Y. Kozawa;S. Sato;Takashi Sato;S. Kawakami
在钛宝石激光腔内，利用分段半波片实现了同时产生线偏振和径向偏振的螺旋光束。将线偏振拉盖尔-高斯光束转换为具有螺旋相移的径向偏振光束，反之亦然。此外，这两个光束在腔中共存，并且腔从输出耦合器发射这两个光束中的一个。
Simultaneous generation of helical beams with linear and radial polarization is demonstrated by use of a segmented half-wave plate in a Ti:sapphire laser cavity. A linearly polarized Laguerre-Gaussian beam is converted to a radially polarized beam with a spiral phase shift and vice versa. In addition, these two beams coexist in the cavity, and the cavity emits one of these two beams from an output coupler.