Title :
Quantum refractometer
Author :
Paterova, Anna ; Kalashnikov, Dmitry ; Kulik, Sergei ; Krivitsky, Leonid
Author_Institution :
Data Storage Inst., Agency for Sci. Technol. & Res., Singapore, Singapore
Abstract :
We exploit the first-order interference of two frequency non-degenerate Parametric Down Conversion (PDC) sources to observe resonant absorption of CO2 gas. Frequency correlations of PDC modes allow the detection of resonant absorption and dispersion of the infrared (IR) mode from interference patterns of visible light. This work demonstrates the determination of real and imaginary parts of the refractive index for IR wavelengths with conventional visible range optics and photodetectors.
Keywords :
carbon compounds; light interference; optical parametric devices; photodetectors; quantum optics; refractive index; refractometers; CO2; CO2 gas; IR wavelengths; PDC modes; conventional visible range optics; first-order interference; frequency correlations; frequency nondegenerate parametric down conversion sources; infrared mode dispersion; interference patterns; photodetectors; quantum refractometer; refractive index; resonant absorption detection; visible light; Absorption; Crystals; Dispersion; Interference; Optics; Refractive index; Resonant frequency;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
