1.
Opt Lett
; 17(10): 716-8, 1992 May 15.
Artigo
em Inglês
| MEDLINE
| ID: mdl-19794607
RESUMO
We have observed double-peaked phase-conjugate pulses in the degenerate four-wave mixing of nanosecond laser pulses in solutions of diphenyl polyenes. We attribute this to the superposition of fast and slow gratings, where the slow grating is due to two-photon absorption. This is supported by the results of time delay and polarization experiments as well as evidence of a second spatial harmonic grating.
2.
Ohio Dent J
; 44(3): 191-2, 1970 May.
Artigo
em Inglês
| MEDLINE
| ID: mdl-5269542
3.