Nonlinear optical diagnostics of phase transitions in C60-TTF derivatives

Isabella Fuks-Janczarek; Xuan Nguyen Phu; Jean-Michel Nunzi; Bouchta Sahraoui; Ivan V. Kityk; J. Berdowski

doi:10.1117/12.449822

7 December 2001 Nonlinear optical diagnostics of phase transitions in C₆₀-TTF derivatives

Isabella Fuks-Janczarek, Xuan Nguyen Phu, Jean-Michel Nunzi, Bouchta Sahraoui, Ivan V. Kityk, J. Berdowski

Proceedings Volume 4461, Linear and Nonlinear Optics of Organic Materials; (2001) https://doi.org/10.1117/12.449822
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

A shape-like modulation of the linear electro-optics (LEO) coefficient versus the pressure (p) and the temperature (T) has been observed for the first time. The modulation depth of the LEO (r₂₂₂) tensor component in the C₆₀-TTF (for He-Ne laser wavelength λ=633 nm) was equal to about 2.6%. Varying the applied hydrostatic pressure up to 15 GPa and the temperature from 4.2 up to 25K. We have unambiguously demonstrated that the observed effect is caused by incorporation of the TTF moiety and absent in the unsubstituted fullerenes varying the applied hydrostatic pressure up to 19 GPa and the temperature from 4.2 up to 150 K. The data obtained gives a possibility for using the discovered effect for contact-less measurements of low temperatures and high pressures.

Citation Download Citation

Isabella Fuks-Janczarek, Xuan Nguyen Phu, Jean-Michel Nunzi, Bouchta Sahraoui, Ivan V. Kityk, and J. Berdowski "Nonlinear optical diagnostics of phase transitions in C₆₀-TTF derivatives", Proc. SPIE 4461, Linear and Nonlinear Optics of Organic Materials, (7 December 2001); https://doi.org/10.1117/12.449822

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