We performed an investigation on Bragg reflection gratings recorded in blue-sensitive holographic polymer dispersed liquid crystals. The use of a position-sensitive detector allows selective measurements of the reflected light, never before reported in these materials, to our knowledge. We can show that by using this experimental technique it is possible to detect the formation of multiple gratings, even when the transmission spectrum does not show multiple peaks. The results are discussed in the frame of existing coupled-wave theory for anisotropic materials, allowing us to obtain the optical characterization of the gratings.
© 2007 Optical Society of America
Original Manuscript: October 6, 2006
Revised Manuscript: November 10, 2006
Manuscript Accepted: November 10, 2006
Published: February 15, 2007
Francesco Vita, Daniele E. Lucchetta, Riccardo Castagna, Oriano Francescangeli, Luigino Criante, and Francesco Simoni, "Detailed investigation of high-resolution reflection gratings through angular-selectivity measurements," J. Opt. Soc. Am. B 24, 471-476 (2007)