U. Bernini et al., THERMALLY-INDUCED OPTICAL BISTABILITY IN A NEW POLYMERIC BLEND AT ROOM-TEMPERATURE, Applied physics. B, Photophysics and laser chemistry, 57(3), 1993, pp. 199-201
The transition from the transmission to the reflection regime for an A
r+-laser beam propagating in the new polymeric blend PMMA-EVA at a non
linear interface has been observed. A comparison between the experimen
tal data and a calculation of the input optical intensity at which thi
s transition should occur (1.45 x 10(7) W m-2) is presented using Kapl
an's theory. The results suggest the presence of thermally induced opt
ical bistability in PMMA-EVA.