Commercial twisted nematic liquid-crystal television provides coupled phase and amplitude modulation. We propose a simple wedged shear plate interferometer for in situ measurement of its phase modulation and operating curve. For a given operating curve, the coupled-mode modulation holograms are designed with an iterative method. We adjust the operating curve by rotating the polarizer and analyzer to obtain the optimal operating curve. The phase-mostly holograms yield good-quality reconstructed images with the zero-order spot reduced to a minimum. Experimental results are shown.
© 1995 Optical Society of America
Original Manuscript: April 8, 1994
Revised Manuscript: November 1, 1994
Published: April 10, 1995
Luiz Gonçalves Neto, Danny Roberge, and Yunlong Sheng, "Programmable optical phase-mostly holograms with coupled-mode modulation liquid-crystal television," Appl. Opt. 34, 1944-1950 (1995)