Continuous-Wave Stimulated Raman Scattering (cwSRS) Microscopy.
Stimulated Raman scattering (SRS) microscopy is a powerful tool for chemically-sensitive non-invasive optical imaging. However, ultrafast laser sources, which are currently employed, are still expensive and require substantial maintenance to provide temporal overlap and spectral tuning. SRS imaging, which utilizes continuous-wave laser sources, has a major advantage, as it eliminates the cell damage due to exposure to the high-intensity light radiation, while substantially reducing the cost and complexity of the set-up. As a proof-of-principle, we demonstrate microscopic imaging of dimethyl sulfoxide using two independent, commonly used lasers, a diode-pumped, intracavity doubled 532-nm laser and a He-Ne laser operating at 632.8-nm.
Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843,USA.
Zhaokai
Z
Meng
Georgi I
GI
Petrov
Vladislav V
VV
Yakovlev
Continuous wave; Raman microscopy; Stimulated Raman scattering