Investigation of the second-harmonic light emission by KTiOPO4 nanometric-sized crystals as an in situ nonlinear nanosource

Author

Le, X.L. ; Sandeau, N. ; Zhou, C. ; Chauvat, D. ; Treussart, F. ; Brasselet, S. ; Roch, J.F. ; Tard, C. ; Perruchas, S. ; Gacoin, Th

Author_Institution

UMR CNRS 8537, Cachan

fYear

2007

fDate

17-22 June 2007

Firstpage

1

Lastpage

1

Abstract

In this paper, we propose the inorganic nonlinear KTiOPO₄ (KTP) crystals of nanometric size with a strong second-harmonic coherent emission when illuminated by femtosecond infrared pulses. The non-resonant character of the nonlinear interaction prevents from any photobleaching or blinking. The signal therefore exhibits a perfect photostability. We show that analysis of coherently emitted non-linear field allows us to characterize isolated nanocrystal orientation.

Keywords

high-speed optical techniques; nanostructured materials; optical harmonic generation; optical materials; potassium compounds; titanium compounds; KTP; KTP crystal; coherently emitted nonlinear field; femtosecond infrared pulse; nanocrystal orientation; nanometric-sized crystal; nonlinear nanosource; photobleaching; photostability; second-harmonic light emission; Light scattering; Microscopy; Nanocrystals; Photobleaching; Photonic crystals; Polarization; Polymer films; Probes; Size measurement; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on

Conference_Location

Munich

Print_ISBN

978-1-4244-0931-0

Electronic_ISBN

978-1-4244-0931-0

Type

conf

DOI

10.1109/CLEOE-IQEC.2007.4387022

Filename

4387022