Meng Xu, Haisha Niu, Lianqing Zhu, Ying Ning. Elastic modulus measurement based on virtual image phase array confocal Brillouin spectroscopy technology[J]. Infrared and Laser Engineering, 2021, 50(4): 20200265
- Infrared and Laser Engineering
- Vol. 50, Issue 4, 20200265 (2021)
Fig. 1. Basic principle of VIPA
Fig. 2. Orders overlap phenomenon of the VIPA
Fig. 3. Confocal Brillouin spectral imaging system
Fig. 4. Schematic diagram of VIPA spectrometer
Fig. 5. Two-dimensional spectral principle of VIPA combined with diffraction grating
Fig. 6. Schematic diagram of ultra-narrow line-width filter
Fig. 7. Typical spectrometer output of the sample
Fig. 8. Brillouin spectrum of PMMA, polyethylene and silica glass
Fig. 8. [in Chinese]
Fig. 9. Brillouin spectral image of PMMA
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Table 1. [in Chinese]
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