High-speed broadband slight-off digital holography based on simultaneous two-step Gouy phase shifting interferometry
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- 作者：Xiaowei Lua ; b ; Shixiang Xua ; Jingzhen Lia ; lijz@szu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Yi Caia ; Yupeng Fana
- 关键词：Digital holography ; Two-step phase shifting ; Gouy phase shifting ; High-speed holography
- 刊名：Optics Communications
- 出版年：2016
- 出版时间：1 February 2016
- 年：2016
- 卷：360
- 期：Complete
- 页码：46-51
- 全文大小：3132 K
文摘
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Broadband light source for digital holography has drawn more and more attentions for special conditions, such as LED based digital holography, femtosecond digital holographic imaging and so on.
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However, none phase shifting approaches so far is suitable for broadband digital holography.
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In this work, we present a dual-channel interferometer in which Gouy method is introduced to produce two-step π phase shift in reference beams and is capable of snap imaging of ultrafast events in a single shot.