DocumentCode
2524490
Title
Ultrasensitive measurement method for refractive index difference between two wavelengths
Author
Legre, M. ; Wegmuller, M. ; Gisin, N.
Author_Institution
Group of Applied Physics, University of Geneva, 20 rue de l´Ecole-de- Medecine, CH-1205 Geneve, Switzerland
fYear
2004
fDate
28-30 Sept. 2004
Firstpage
47
Lastpage
50
Abstract
A novel method for the measurement of ultra small refractive index differences between two wavelengths is demonstrated. The method is based on the change of the phase matching conditions of a nonlinear process in two nonlinear crystals separated by a dispersive medium. We demonstrate the performance of our technique by measuring the refractive index difference of air between 775nm and l550nm with an air column of only 33cm.
Keywords
Dispersion; Frequency conversion; Nonlinear equations; Nonlinear optics; Optical frequency conversion; Optical harmonic generation; Optical pumping; Photonic crystals; Refractive index; Wavelength measurement;
fLanguage
English
Publisher
ieee
Conference_Titel
Optical Fiber Measurements, 2004. Technical Digest: Symposium on
Conference_Location
Boulder, CO, USA
Print_ISBN
1-886843-37-6
Type
conf
DOI
10.1109/SOFM.2004.183472
Filename
1391925
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