Microscopy based on digital lensless Fourier transforms holography

Zhaoji Chen; Feifei Liu; Wendi Gong; Huaying Wang

doi:10.1117/12.870558

17 November 2010 Microscopy based on digital lensless Fourier transforms holography

Zhaoji Chen, Feifei Liu, Wendi Gong, Huaying Wang

Proceedings Volume 7848, Holography, Diffractive Optics, and Applications IV; 784834 (2010) https://doi.org/10.1117/12.870558
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

With the recent technological advances, there is an increasing need for testing the microstructure of objects. We show here Digital Holographic Microscopy (DHM) that implements digitally the principle of holography. It is particularly well suited for recording and reconstructing three-dimensional objects. In this paper, we present an off-axis digital holographic configuration and address some basic issues of the off-axis lensless Fourier transform digital holography including the recording conditions and the methods to improve the imaging performance. Following the theoretical analysis, the simple imaging system with the off-axis arrangement is built. Through using the resolution test target as microscopic object, the recorded holograms are reconstructed digitally based on the principle of Fresnel diffraction. The experimental results are consistent with the theoretical analysis. In addition, from the experimental operations and the design of reconstruction procedure we can see that the off-axis lensless Fourier-transform digital holographic setup is simple and suitable for real-time applications in microscopy.

Citation Download Citation

Zhaoji Chen, Feifei Liu, Wendi Gong, and Huaying Wang "Microscopy based on digital lensless Fourier transforms holography", Proc. SPIE 7848, Holography, Diffractive Optics, and Applications IV, 784834 (17 November 2010); https://doi.org/10.1117/12.870558

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