Title

Two-Photon Absorption Induced Transmission Changes In Znse Interference Filters

Abstract

We observe two-photon absorption (2PA) of picosecond, 0.6-μm, 0.3-nJ pulses in a 0.4μm film of ZnSe. We use high-frequency-modulation phase-sensitive detection to be near the shot-noise limit combined with a low-frequency pulse-delay modulation to discriminate against large thermal nonlinearities. This dual-modulation technique, combined with the field enhancement produced by placing the film in a resonant cavity, permits observation of 2PA and other fast nonlinearities by using pulses having peak powers of the order of 1 W. © 1988, Optical Society of America.

Publication Date

1-1-1988

Publication Title

Journal of the Optical Society of America B: Optical Physics

Volume

5

Issue

6

Number of Pages

1289-1292

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/JOSAB.5.001289

Socpus ID

0013429709 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0013429709

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