Sensitive measurement of nonlinear refraction and two-photon absorption by spectrally resolved two-beam coupling
A simple and very sensitive method for determining refractive and absorptive nonlinearities based on spectral resolution of two-beam coupling is demonstrated. Nonlinear phase shifts as small as ~10(-6) rad and two-photon absorption coefficients as small as 10(-4) cm/GW are readily observed by use of...
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| Veröffentlicht in: | Optics letters 1997-07, Vol.22 (14), p.1077-1079 |
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| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | A simple and very sensitive method for determining refractive and absorptive nonlinearities based on spectral resolution of two-beam coupling is demonstrated. Nonlinear phase shifts as small as ~10(-6) rad and two-photon absorption coefficients as small as 10(-4) cm/GW are readily observed by use of this technique with nanojoule pulses from a mode-locked laser. |
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| ISSN: | 0146-9592 1539-4794 |
| DOI: | 10.1364/ol.22.001077 |