Acta Optica Sinica, Volume. 38, Issue 1, 0111004(2018)
Dual-Wavelength Image-Plane Digital Holographic Microscopy Based on Bi-Color LED Chips
Dual-wavelength image-plane digital holographic microscopy based on bi-color LED chips is proposed. Firstly, a red LED chip with central wavelength of 670 nm and a green LED chip with central wavelength of 521 nm are packaged as a hemispherical LED chip. Composite holograms at different wavelengths and phase shift are recorded with a color CCD camera. The phase distribution and surface profile of the sample are reconstructed based on the color separation technology, phase shifting technology and dual-wavelength phase extracting technology. The feasibility of the proposed method is demonstrated by the experimental results.
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Lijun Deng, Xingyan Huang, Lüming Zeng, Zhen Huang, Guodong Liu. Dual-Wavelength Image-Plane Digital Holographic Microscopy Based on Bi-Color LED Chips[J]. Acta Optica Sinica, 2018, 38(1): 0111004
Category: Imaging Systems
Received: Jul. 21, 2017
Accepted: --
Published Online: Aug. 31, 2018
The Author Email: Liu Guodong (626208665@qq.com)