By Topic

Surface relief gratings induced by a nanosecond pulse in a liquid-crystalline azo-polymethacrylate

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

The purchase and pricing options are temporarily unavailable. Please try again later.
7 Author(s)
Rodriguez, F.J. ; Departamento de Física de la Materia Condensada, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza, C/ Pedro Cerbuna 12, 50009 Zaragoza, Spain ; Sanchez, C. ; Villacampa, B. ; Alcala, R.
more authors

Your organization might have access to this article on the publisher's site. To check, click on this link: 

Surface relief gratings have been generated in an azobenzene side chain liquid-crystal polymer using an intensity interference pattern from two coherent laser pulses (532 nm and 4 ns). We elucidate whether peaks or trenches correspond to the high intensity regions of the interference pattern. For low-energy pulses, peaks are generated in the irradiated areas while trenches appear for energies above a threshold (around 100 mJ/cm2 per beam). This phenomenology, together with the lack of relief when polarization patterns are used, indicates that in this polymer surface relief has a thermal origin.

Published in:

Applied Physics Letters  (Volume:87 ,  Issue: 20 )