Single pulse phase-control interferometric coherent anti-StokesRaman scattering spectroscopy (CARS)

Journal Article · Wed Sep 28 04:00:00 EDT 2005 · Physical Review A. Rapid Communication

OSTI ID:883776

Lim, Sang-Hyun; Caster, Allison G; Leone, Stephen R

In coherent anti-Stokes Raman scattering spectroscopy (CARS) experiments, usually the amplitude of the signal is measured and the phase information is lost. With a polarization- and phase-controlled pulse shaping technique, the relative phase between the resonant and non-resonant CARS signals is controlled, and spectral interferometry is performed without an interferometer. Both the real and imaginary parts of the background-free resonant CARS spectrum are measured via spectral interferometry between the resonant and non-resonant signals from the same sample. The resonant signal is amplified significantly by homodyne mixing with the non-resonant signal as a local oscillator, greatly improving the detection limit.

• Research Organization: Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
• Sponsoring Organization: USDOE Director. Office of Science. Office of Basic EnergySciences; National Science Foundation. Division of Materials Research,National Science Foundation Fellowship
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 883776
• Report Number(s): LBNL--58915; BnR: KC0203010
• Journal Information: Physical Review A. Rapid Communication, Journal Name: Physical Review A. Rapid Communication Journal Issue: 4 Vol. 72
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
47 OTHER INSTRUMENTATION
AMPLITUDES
AUTOMOBILES
CARS spectral interferometry homodyne amplification
INTERFEROMETRY
POLARIZATION
SCATTERING
SENSITIVITY
SPECTROSCOPY