Nonlinear optical contrast enhancement for optical coherence tomography

Abstract

We present a new interferometric technique for measuring Coherent Anti-Stokes Raman Scattering (CARS) and Second Harmonic Generation (SHG) signals. Heterodyne detection is employed to increase the sensitivity in both CARS and SHG signal detection, which can also be extended to different coherent processes. The exploitation of the mentioned optical nonlinearities for molecular contrast enhancement in Optical Coherence Tomography (OCT) is presented. Numerical simulations for both coherent nonlinear processes are performed in order to determine the properties of the signal expected at the exit of the described nonlinear interferometer.

13 pages, Latex, 10 Postscript figures, uses opex3 style, submitted

References in corpus (1)

• Coherent Anti-Stokes Raman Scattering Heterodyne Interferometry

Cited by in corpus (5)

• Nonlinear interferometric vibrational imaging
• Integrated structural and functional optical imaging combining spectral-domain optical coherence and multiphoton microscopy
• Interferometric differentiation between resonant Coherent Anti-Stokes Raman Scattering and nonresonant four-wave-mixing processes
• Experimental quantum imaging distillation with undetected light
• Tunable MEMS VCSEL on Silicon substrate