Low-power nonlinear optical interaction in dye-doped sol-gel glasses

Sio Kuan Lam; Man-shih Athena Chan; Dennis Y. Lo

doi:10.1117/12.408528

29 November 2000 Low-power nonlinear optical interaction in dye-doped sol-gel glasses

Sio Kuan Lam, Man-shih Athena Chan, Dennis Y. Lo

Proceedings Volume 4106, Linear, Nonlinear, and Power-Limiting Organics; (2000) https://doi.org/10.1117/12.408528
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

Organic dye-doped solids show strong third-order optical non-linearity due to the enhancement of the lifetime of the lowest triplet state of the dye in solid environment. The long triplet state lifetime leads to low absorption saturation intensity. As a result, the third order nonlinear optical behavior is observable at very low light power (i.e. tens of mW). Dye-doped solid of large third order nonlinearity finds application in many photonic devices. Boric acid glass, polymer (such as PMMA, PVA, PAA), sol-gel silica, and organically modified sol-get silicate (ORMOSIL) have been used as host materials for dyes. We will concentrate our interest on the dye-doped sol-gel silica and dye-doped ORMOSIL. We have performed degenerate four wave mixing (DFWM) experiment to demonstrate optical phase conjugation by eosin Y-doped sol-gel silica in vacuum ambient. We have also performed Z-scan measurement to study the nonlinear refractive index of fluorescein 548- doped ORMOSIL. Absorption saturation experiments are conducted to determine the absorption intensity and (chi) ⁽³).

Citation Download Citation

Sio Kuan Lam, Man-shih Athena Chan, and Dennis Y. Lo "Low-power nonlinear optical interaction in dye-doped sol-gel glasses", Proc. SPIE 4106, Linear, Nonlinear, and Power-Limiting Organics, (29 November 2000); https://doi.org/10.1117/12.408528

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KEYWORDS

Sol-gels

Silica

Absorption

Solids

Laser beam diagnostics

Optical proximity correction

Phase conjugation

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