Fig. 2 Anti-drift capability and suppressing capability of defocus layer stray light on test results. (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Fig. 2 Anti-drift capability and suppressing capability of defocus layer stray light on test results.

Caption

(a) The test results of DLDCRBSM and confocal Raman system (CRM) when the sample is tilted. With focusing capability, mapping results of DLDCRBSM are clear (upper). Without focusing capability, mapping results of traditional CRM/Confocal Brillouin Microscope are ambiguous (lower). (b) Compared with the conventional CRM, the DLDCRBSM spatially separates the excitation light path and the collection light path of the Raman spectrum, the size of the focal region in the axial direction is compressed. Therefore, the system can suppress the interference of stray light in defocusing layer.

Credit

by Lirong Qiu, Yunhao Su, Ke-Mi Xu, Han Cui, Dezhi Zheng, Yuanmin Zhu, Lin Li, Fang Li, Weiqian Zhao

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