Abstract
A scheme for measuring χ(3) using single-beam nearly degenerate forward four-wave mixing, which has the advantage of sensitivity and simplicity over some previous methods, is reported. It allows a fast electronic effect to be separated from a slow thermal effect, which often masks the accurate measurement of electronic χ(3). This is important when the one- or two-photon absorption is large, which often occurs in organic materials. Using the method, the authors have been able to resolve a nonlinear phase shift of approximately π/500, limited only by the saturation of the broadband (40-MHz) detector preamplifier used.
Original language | English (US) |
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Title of host publication | XVII International Conference on Quantum Electronics. Digest of |
Publisher | Publ by IEEE |
Pages | 40-42 |
Number of pages | 3 |
State | Published - Dec 1 1990 |
Event | 17th International Conference on Quantum Electronics - IQEC '90 - Anaheim, CA, USA Duration: May 21 1990 → May 25 1990 |
Other
Other | 17th International Conference on Quantum Electronics - IQEC '90 |
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City | Anaheim, CA, USA |
Period | 5/21/90 → 5/25/90 |
ASJC Scopus subject areas
- General Engineering