Chip-scale full-Stokes spectropolarimeter in silicon photonic circuits  

作　　者：ZHONGJIN LIN TIGRAN DADALYAN SIMON BELANGER-DE VILLERS TIGRAN GALSTIAN WEI SHI 

机构地区：[1]Department of Electrical and Computer Engineering,Centre for Optics,Photonics and Laser(COPL),Universite Laval,Quebec,Quebec G1V 0A6,Canada

出　　处：《Photonics Research》2020年第6期864-874,共11页光子学研究（英文版）

基　　金：Natural Sciences and Engineering Research Council of Canada(STPGP 494358-16);China Scholarship Council(201606890030).

摘　　要：Wavelength dependent polarization state of light carries crucial information about light-matter interactions.However,its measurement is limited to bulky,high energy-consuming devices,which prohibits many modern,portable applications.Here,we propose and demonstrate a chip-scale spectropolarimeter implemented using a complementary metal oxide semiconductor compatible silicon photonics technology.Four compact Vernier microresonator spectrometers are monolithically integrated with a broadband polarimeter consisting of a 2D nanophotonic antenna and a polarimetric circuit to achieve full-Stokes spectropolarimetric analysis.The proposed device offers a solid-state spectropolarimetry solution with a small footprint of 1 mm × 0.6 mm and low power consumption of 360 mW.Full-Stokes spectral detection across a broad spectral range of 50 nm with a resolution of 1 nm is demonstrated in characterizing a material possessing structural chirality.The proposed device may enable a broader application of spectropolarimetry in the fields ranging from biomedical diagnostics and chemical analysis to observational astronomy.

关 键 词：antenna POLARIZATION RESONATOR 

分 类 号：TN40[电子电信—微电子学与固体电子学] O436.3[机械工程—光学工程]