Optical bistability induced by mirror absorption: measurement of absorption coefficients at the sub-ppm level.
We have observed optical bistability caused by absorption-induced thermal expansion of mirrors forming a Fabry-Perot interferometer. From the resulting anomalous transmission line shapes, absorption coefficients of the mirror coatings as low as 0.2parts in 10(6) (ppm) have been successfully measured.
An
K
K
Sones
B A
BA
Fang-Yen
C
C
Dasari
R R
RR
Feld
M S
MS