Title

Time-Resolved Z-Scan Measurements Of Optical Nonlinearities

Abstract

We introduce a temporal delay in one beam of the two-color Z-scan apparatus, which measures nondegenerate nonlinear absorption and nondegenerate nonlinear refraction. This technique allows us to time resolve separately the sign and the magnitude of the nonlinear absorption and refraction at frequency p that are due to the presence of a strong excitation at frequency oe. For example, in semiconductors we specifically measure the bound electronic, nondegenerate nonlinear refraction and nondegenerate two-photon absorption, as well as the two-photon-generated free-carrier refraction and absorption as functions of time. We demonstrate this technique on ZnSe, ZnS, and CS2, using picosecond pulses at 1.06 and 0.532μm. © 1994 Optical Society of America.

Publication Date

1-1-1994

Publication Title

Journal of the Optical Society of America B: Optical Physics

Volume

11

Issue

6

Number of Pages

1009-1017

Document Type

Article

Identifier

scopus

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/JOSAB.11.001009

Socpus ID

0028460078 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0028460078

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