Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
56 (1990), S. 1187-1188
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Using photothermal deflection spectroscopy we have measured the nonresonant absorption coefficient of poly (bis-p-toluene sulfonate) of 2,4 hexadiyne-1,6 diol (PTS) single-crystal films for the first time. The absorption coefficient continuously decreases from the reported peak value of ∼9×105 cm−1 at 620 nm (exciton band) to ∼100 cm−1 at 700 nm and finally reaches a value of ∼0.30 cm−1 at λ∼1.3 μm for polarization parallel to the chain axis. Above λ∼1050 nm, the absorption coefficient becomes polarization independent. The low nonresonant absorption coefficient as measured is desirable in terms of nonlinear optical device applications of this material.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.102556
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