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15 March 2023 Brillouin signal enhancement by recycling illumination light (Conference Presentation)
Chenjun Shi, Jitao Zhang
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Proceedings Volume PC12381, Optical Elastography and Tissue Biomechanics X; PC1238108 (2023) https://doi.org/10.1117/12.2650892
Event: SPIE BiOS, 2023, San Francisco, California, United States
Abstract
Brillouin microscopy provides a non-invasive method for quantifying the mechanical properties of biological materials with diffraction-limited resolution. Since the signal of spontaneous Brillouin scattering is very weak, high laser power and ultrasensitive detection are usually required. Here, we report a new approach to enhance the signal of Brillouin microscopy by recycling the power of the illumination beam. With a multipass illumination geometry, we obtained about 3.75 times enhancement of the Brillouin signal under the same input laser power. We will present the details of the optical design as well as the experiment.
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© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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Chenjun Shi and Jitao Zhang "Brillouin signal enhancement by recycling illumination light (Conference Presentation)", Proc. SPIE PC12381, Optical Elastography and Tissue Biomechanics X, PC1238108 (15 March 2023); https://doi.org/10.1117/12.2650892
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KEYWORDS
Laser scattering
Microscopy
Scattering
Light scattering
Continuous wave operation
Laser sources
Line scan image sensors
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