We propose and demonstrate a simple technique for determining the M/# parameter of a holographic recording material. In this method, divergent object and reference beams are used to produce a spatially varying index modulation. One can analyze the resultant diffraction pattern to find M/# by using only a single grating; existing techniques require many gratings.
© 2004 Optical Society of America
(050.0050) Diffraction and gratings : Diffraction and gratings
(090.0090) Holography : Holography
(090.7330) Holography : Volume gratings
(210.0210) Optical data storage : Optical data storage
H. N. Yum, P. R. Hemmer, R. Tripathi, J. T. Shen, and M. S. Shahriar, "Demonstration of a simple technique for determining the M/# of a holographic substrate by use of a single exposure," Opt. Lett. 29, 1784-1786 (2004)