High-sensitivity, single-beam n_2 measurements

Abstract

We present a simple yet highly sensitive single-beam experimental technique for the determination of both the sign and magnitude of n(2). The sample is moved along the z direction of a focused Gaussian beam while the repetitively pulsed laser energy is held fixed. The resultant plot of transmittance through an aperture in the far field yields a dispersion-shaped curve from which n(2) is easily calculated. A transmittance change of 1% corresponds to a phase distortion of approximately lambda/250. We demonstrate this method on several materials using both CO(2) and Nd:YAG laser pulses.

Keywords

OpticsTransmittanceMaterials scienceBeam (structure)Laser beam qualityLaserDistortion (music)Dispersion (optics)Aperture (computer memory)Laser beamsPhysicsOptoelectronics

Affiliated Institutions

University of Central Florida US

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Publication Info

Year: 1989
Type: article
Volume: 14
Issue: 17
Pages: 955-955
Citations: 2556
Access: Closed

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APA Style

                            
                                    Mansoor Sheik‐Bahae, 
                                
                                    A. A. Said, 
                                
                                    Eric W. Van Stryland
                                
                            (1989). 
                            High-sensitivity, single-beam n_2 measurements. 
                            Optics Letters
                            , 14
                            (17)
                            , 955-955.
                            https://doi.org/10.1364/ol.14.000955

Identifiers

DOI: 10.1364/ol.14.000955