Single-pulse phase-control interferometric coherent anti-Stokes Raman scattering spectroscopy

Journal Article · Sat Oct 15 04:00:00 EDT 2005 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.72.041803· OSTI ID:20718678

Lim, S -H; Caster, Allison G; Leone, Stephen R ^[1]

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1. Departments of Chemistry and Physics, University of California at Berkeley, Berkeley, California 94720, USA and Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

In coherent anti-Stokes Raman scattering (CARS) spectroscopy 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 nonresonant 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 nonresonant signals from the same sample. The resonant signal is amplified significantly by homodyne mixing with the nonresonant signal as a local oscillator, greatly improving the detection limit.

• OSTI ID: 20718678
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 4 Vol. 72; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
74 ATOMIC AND MOLECULAR PHYSICS
AMPLITUDES
CONTROL
INTERFEROMETERS
INTERFEROMETRY
MIXING
OSCILLATORS
POLARIZATION
PULSES
RAMAN EFFECT
RAMAN SPECTROSCOPY
SENSITIVITY
SIGNALS
VISIBLE RADIATION