[1] [1] XIA Y,WAN J,XU L,et al.A room-temperature methane sensor based on Pd-decorated ZnO/rGO hybrids enhanced by visible light photocatalysis［J］.Sensors and Actuators,2019,B304:127334.

[2] [2] MULLER S A,DEGLER D,FELDMANN C,et al.Exploiting synergies in catalysis and gas sensing using noble metal-loaded oxide composites［J］.ChemCatChem,2018,10(5):864-880.

[3] [3] LIU L,LI G.A remote sensor for detecting methane based on palladium-decorated single walled carbon nanotubes［J］.Sensors,2013,13(7): 8814-8826.

[4] [4] DHIVYA P,PRASAD A K,SRIDHARAN M.Effect of sputtering power on the methane sensing properties of nanostructured cadmium oxide films［J］.Journal of Alloys and Compounds,2015,620: 109-115.

[5] [5] LIU H,WANG M,WANG Q,et al.Simultaneous measurement of hydrogen and methane based on PCF-SPR structure with compound film-coated side-holes［J］.Optical Fiber Technology,2018,45: 1-7.

[6] [6] YANG J Ch,XIN C,RUI S,et al.High-sensitivity photonic crystal fiber long-period grating methane sensor with cryptophane-A-6Me absorbed on a PAA-CNTs/PAH nanofilm［J］.Optics Express,2017,25(17): 20258-20267.

[7] [7] LIU H,WANG H R,ZHANG W,et al.High sensitive methane sensor with temperature compensation based on selectively liquid-infiltrated photonic crystal fibers［J］.Photonic Sensors,2019,9: 213-222.

[8] [8] ZHENG K Y,ZHENG C T,LI J H,et al.Near-infrared methane sensor system using off-axis integrated cavity output spectroscopy with novel dual-input dual-output coupling scheme for mode noise suppression［J］.Sensors and Actuators,2020,B308: 127674.

[9] [9] VUONG N M,HIEU N M,HIEU H N,et al.Ni2O3-decorated SnO2 particulate films for methane gas sensors［J］.Sensors and Actuators,2013,B192:327-333.

[10] [10] ZHOU X X,SHENG L J,LING X H.Photonic spin Hall effect enabled refractive index sensor using weak measurements［J］.Scientific Reports,2018,8:1221.

[11] [11] KAVOKIN A,MALPUECH G,GLAZOV M.Optical spin hall effect［J］.Physical Review Letters,2005,95: 13660.

[12] [12] BLIOKH K Y,SMIRNOVA D,NORI F.Quantum spin Hall effect of light［J］.Science,2015,348(6242):1448-1451.

[13] [13] LUO H,ZHOU X,SHU W,et al.Enhanced and switchable spin Hall effect of light near the Brewster angle on refection［J］.Physical Review,2011,A84:043806.

[14] [14] WU Y D,SHENG L J,XIE L G,et al.Actively manipulating asymmetric photonic spin Hall effect with graphene［J］.Carbon,2020,166:396-404.

[15] [15] SHALTOUT A,LIU J,KILDISHEV A,et al.Photonic spin hall effect in gap-plasmon metasurfaces for on-chip chiroptical spectroscopy［J］.Optica,2015,2(10): 860-863.

[16] [16] SRIVASTAVA A,SHARMA A K,PRAJAPATI Y K.On the sensitivity-enhancement in plasmonic biosensor with photonic spin Hall effect at visible wavelength［J］.Chemical Physics Letters,2021,774:138613.

[17] [17] LI N X,TANG T T,LI J,et al.Highly sensitive biosensor with graphene-MoS2 heterostructure based on photonic spin Hall effect［J］.Journal of Magnetism and Magnetic Materials,2019,484:445-450.

[18] [18] WANG Y H,JIN R C,LI J Q,et al.Photonic spin Hall effect by the spin-orbit interaction in a metasurface with elliptical nano-structures［J］.Applied Physics Letters,2017,110(10):10190.

[19] [19] SHENG L J,XIE L G,LUO H L,et al.Sensitivity enhanced refractive index sensor by reducing the inflfluence of in-plane wavevector in photonic spin Hall effect［J］.IEEE Photonics Journal,2018,10(5):6501209 .

[20] [20] ZHANG P,TANG T,LUO L,et al.Magneto-optical spin Hall effect of light and its application in refractive index detection［J］.Optics Communications,2020,475:126175.

[21] [21] WAN B F,WANG Q Y,PENG H M,et al.A late-model optical biochemical sensor based on OTS for methane gas and glucose solution concentration detection［J］.IEEE Sensors Journal,2021,21:21465-21472.

[22] [22] LIU H,CHEN C,ZHANG Y Z,et al.A high-sensitivity methane sensor with localized surface plasmon resonance behavior in an improved hexagonal gold nanoring array［J］.Sensors,2019,19(21): 4803.

[23] [23] ZAKY Z A,AHMED A M,SHALABY A S,et al.Refractive index gas sensor based on the Tamm state in a one-dimensional photonic crystal: Theoretical optimization［J］.Scientific Reports,2020,10:9736.

[24] [24] CHEN Q H,DING J H,HAN W Y,et al.Effect of optical fiber SPR sensor parameters on the sensitivity of refractive index measurement［J］.Laser Technology,2023,47(3): 329-334(in Chinese).

[25] [25] RENILKUMAR M,NAIR P.Properties of defect modes in geometrically chirped one-dimensional photonic crystals［J］.Optical Materials,2011,33(6):853-858.