Relation Between n and Two-Photon Absorption

M Sheik-Bahae; DJ Hagan; EW Van Stryland; TH Wei; AA Said; E Canto; A Miller

doi:10.1520/STP26525S

SYMPOSIA PAPER Published: 01 January 1990

STP26525S

Relation Between n and Two-Photon Absorption

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We present evidence from nonlinear refractive index measurements, two-photon absorption measurements, and fourwave mixing measurements on semiconductors showing that the bound electronic nonlinearity can be calculated from two-photon absorption dispersion via a simple Kramers-Kronig analysis. This analysis shows n₂ changing from positive to negative as the photon energy approaches the band-gap energy, consistent with observations. Additionally, this simple calculation, which assumes two parabolic bands, gives good agreement with measured values of n₂ in wide-gap dielectrics that are 2 to 3 orders of magnitude smaller than in semiconductors.

Author Information

Sheik-Bahae, M

Hagan, DJ

Van Stryland, EW

Wei, TH

Said, AA

Canto, E

Miller, A

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Details

Developed by Committee: E13

Pages: 591–597

DOI: 10.1520/STP26525S

ISBN-EB: 978-0-8031-5157-4

ISBN-13: 978-0-8031-4478-1

Relation Between n and Two-Photon Absorption

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