2017
DOI: 10.1364/oe.25.005618
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Compact and versatile laser system for polarization-sensitive stimulated Raman spectroscopy

Abstract: We demonstrate a compact and versatile laser system for stimulated Raman spectroscopy (SRS). The system is based on a tunable continuous wave (CW) probe laser combined with a home-built semi-monolithic nanosecond pulsed pump Nd:YVO4 laser at 1064 nm. The CW operation of the probe laser offers narrow linewidth, low noise and the advantage that temporal synchronization with the pump is not required. The laser system enables polarization-sensitive stimulated Raman spectroscopy (PS-SRS) with fast high r… Show more

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Cited by 11 publications
(10 citation statements)
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“…The molecular vibrations reflect the molecular structure and are therefore used as a spectroscopic fingerprint for detection, identification, and imaging of molecules. The Raman scattered (Stokes) signal can be obtained both via a spontaneous process as well as a stimulated process using two lasers having a frequency difference corresponding to the energy difference in the Raman transition involved [24][25][26]. Recently Raman spectroscopy has increasingly been recognized as a reliable quality control tool due to its ability to non-destructively probe adulteration related changes in olive oil with high chemical specificity and without requiring any reagents or sample preparation.…”
Section: Introductionmentioning
confidence: 99%
“…The molecular vibrations reflect the molecular structure and are therefore used as a spectroscopic fingerprint for detection, identification, and imaging of molecules. The Raman scattered (Stokes) signal can be obtained both via a spontaneous process as well as a stimulated process using two lasers having a frequency difference corresponding to the energy difference in the Raman transition involved [24][25][26]. Recently Raman spectroscopy has increasingly been recognized as a reliable quality control tool due to its ability to non-destructively probe adulteration related changes in olive oil with high chemical specificity and without requiring any reagents or sample preparation.…”
Section: Introductionmentioning
confidence: 99%
“…The experimental framework also highlights the utility of hsSRS microscopy in addressing questions with high temporal resolution requirements and will continue to provide fruitful information about live cell biophysics beyond neuromodulation. (23,73,74) and cellular (36,37,43,75) samples , respectively. Baseline and IR-stimulated spectra for E) PMMA, and F) PS reconstructed using the focus pre-compensation approach, with respective chemical structures for reference.…”
Section: Discussionmentioning
confidence: 99%
“…Improvement to the guiding of optical signals within the fiber core and reduction of unwanted background signal can be achieved using alternative designs of the optical fiber with higher NA and lower amount of silica surrounding the guiding core [31,42], refining the fiber preparation method (and the related collapse of the photonic crystal structure [30]), and optimizing the length of the optical fiber according to the transmission properties of the solution. Further improvements to the sensitivity of nanoparticle concentration measurement can be achieved by combining our fiber-enhanced system with Raman enhancement techniques that target specific vibrational modes, such as resonance Raman scattering [43] or stimulated Raman scattering [44].…”
Section: Discussionmentioning
confidence: 99%