Phase measurement accuracy in digital holographic microscopy using a wavelength-stabilized laser diode

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題名:	Phase measurement accuracy in digital holographic microscopy using a wavelength-stabilized laser diode
作者:	Lee, YL (Lee, Yueh-Long) Lin, YC (Lin, Yu-Chih) Tu, HY (Tu, Han-Yen) Cheng, CJ (Cheng, Chau-Jern)
貢獻者:	Dept Elect Engn
關鍵詞:	digital holography microscopy phase measurement laser diodes
日期:	2013-02
上傳時間:	2014-03-03 10:58:49 (UTC+8)
摘要:	This work describes the influence of coherent illumination on phase measurement accuracy in digital holographic microscopy (DHM). To improve net phase accuracy in a DHM system, the phase referencing and temporal averaging techniques are applied simultaneously to suppress the phase noises caused by the laser source and image sensor. A comparison between a laser diode operated in single- and multi-modes is given to demonstrate the coherence effect on the fringe visibility and the reconstructed phase accuracy of digital holograms. Axial sub-nanometer accuracy in DHM with the fewest successive hologram recordings is performed using a wavelength-stabilized laser diode in single- mode operation.
關聯:	JOURNAL OF OPTICS Volume: 15 Issue: 2 Article Number: 025403
顯示於類別:	[電機工程系] 期刊論文

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