Work

Controlling stimulated coherent spectroscopy and microscopy by a position-dependent phase

Year: 2013

Type: article

Abstract: We study the role of geometry dependent phase shifts in stimulated coherent spectroscopy, a special class of heterodyne optical spectroscopy techniques. We generalize the theoretical description of stimulated spectroscopy to include spatial phase effects, and consider the measured material response for several representative excitation and detection configurations. Using stimulated Raman scattering microscopy as an example, we show that different components of the material response are measured depending the position of the object in focus. We discuss the implications of the position dependent phase in stimulated coherent microscopy and point out a detection configuration in which its effects are minimized.

Source: Physical Review A

DOI: 10.1103/physreva.87.033833

Authors: Chao-Yu Chung, Julie Hsu, Shaul Mukamel, Eric O. Potma

Institution: University of California, Irvine

Language: English

Topic: Spectroscopy Techniques in Biomedical and Chemical Research

Subfield: Biophysics

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

Open Access status: green

Funders: National Science Foundation, National Institutes of Health, National Institute of General Medical Sciences

Award: Multidimensional Femtosecond Correlation Spectroscopic Probes of Biomolecules