Abstract

This Letter reports a demonstration of off-axis compressed holography in low-light level imaging conditions. An acquisition protocol relying on a single exposure of a randomly undersampled diffraction map of the optical field, recorded in the high heterodyne gain regime, is proposed. The image acquisition scheme is based on compressed sensing, a theory establishing that near-exact recovery of an unknown sparse signal is possible from a small number of nonstructured measurements. Image reconstruction is further enhanced by introducing an off-axis spatial support constraint to the image estimation algorithm. We report accurate experimental recovering of holographic images of a resolution target in low-light conditions with a frame exposure of $5\mathrm{\mu s}$, scaling down measurements to 9% of random pixels within the array detector.

© 2011 Optical Society of America

Compressed sensing with off-axis frequency-shifting holography

Marcio M. Marim, Michael Atlan, Elsa Angelini, and Jean-Christophe Olivo-Marin
Opt. Lett. 35(6) 871-873 (2010)

Conditions for practicing compressive Fresnel holography

Yair Rivenson and Adrian Stern
Opt. Lett. 36(17) 3365-3367 (2011)

Autofocusing of digital holographic microscopy based on off-axis illuminations

Peng Gao, Baoli Yao, Junwei Min, Rongli Guo, Baiheng Ma, Juanjuan Zheng, Ming Lei, Shaohui Yan, Dan Dan, and Tong Ye
Opt. Lett. 37(17) 3630-3632 (2012)

Angular spectrum matching for digital holographic microscopy under extremely low light conditions

Kotaro Inoue, Arun Anand, and Myungjin Cho
Opt. Lett. 46(6) 1470-1473 (2021)

Video-rate compressive holographic microscopic tomography

Joonku Hahn, Sehoon Lim, Kerkil Choi, Ryoichi Horisaki, and David J. Brady
Opt. Express 19(8) 7289-7298 (2011)