[1] [1] KRESS B C. Digital optical elements and technologies (EDO19): applications to AR/VR/MR [C]//Proceedings of SPIE 11062, Digital Optical Technologies 2019. Munich, Germany: SPIE, 2019: 1106222.

[2] [2] KRESS B C. Optical waveguide combiners for AR headsets: features and limitations [C]//Proceedings of SPIE 11062, Digital Optical Technologies 2019. Munich, Germany: SPIE, 2019: 110620J.

[3] [3] BUNNING T J, NATARAJAN L V, TONDIGLIA V P, et al. Holographic polymer-dispersed liquid crystals (H-PDLCs) [J]. Annu. Rev. Mater. Sci., 2000, 30: 83-115.

[4] [4] KAKIUCHIDA H, OGIWARA A, MATSUYAMA A. Multiple Bragg diffractions with different wavelengths and polarizations composed of liquid crystal/polymer periodic phases [J]. ACS Omega, 2017, 2(9): 6081-6090.

[7] [7] WALDERN J D, GRANT A J, POPOVICH M M. DigiLens switchable Bragg grating waveguide optics for augmented reality applications [C]//Proceedings of SPIE 10676, Digital Optics for Immersive Displays. Strasbourg, France: SPIE, 2018: 106760G.

[9] [9] SUN X H, TAO X M, YE T J, et al. Diffraction measurement and analysis of slanted holographic polymer dispersed liquid crystal [J]. J. Appl. Phys., 2005, 98(4): 043510.

[10] [10] FASANELLA A, CASTRIOTA M, CAZZANELLI E, et al. Molecular orientation of E7 liquid crystal in POLICRYPS holographic gratings: a micro-Raman spectroscopic analysis [J]. Mol. Cryst. Liq. Cryst., 2012, 558(1): 46-53.

[12] [12] LIU M H, LIU Y G, ZHANG G Y,et al. Organic holographic polymer dispersed liquid crystal distributed feedback laser from different diffraction orders [J]. J. Phys. D Appl. Phys., 2016, 49(46): 465102.

[14] [14] KOGELNIK H. Coupled wave theory for thick hologram gratings [J]. Bell Syst. Tech. J., 1969, 48(9): 2909-2947.

[15] [15] CAPUTO R, TREBISACCE I, DE SIO L, et al. Jones matrix analysis of dichroic phase retarders realized in soft matter composite materials [J]. Opt. Express, 2010, 18(6): 5776-5784.

[16] [16] LIU M H, LIU Y G, PENG Z H,et al. Self-orientation effect of liquid crystals on holographic polymer-dispersed liquid crystal and distributed feedback lasers [J]. Appl. Phys. B, 2017, 123(7): 208.

[17] [17] PENG H Y, NI M L, BI S G, et al. Highly diffractive, reversibly fast responsive gratings formulated through holography [J]. RSC Adv., 2014, 4(9): 4420-4426.