Beihang University

Vanjee Technology Co., Ltd.

Zhaosong Li

Di Wang

Chao Liu

Yang Xu

Pengfei Wang

Qionghua Wang

Hongyan Yu

Jiaoqing Pan

Qingfei Wang

Linyan Tian

Yilong Li

Yejin Zhang

Zhibo Li

Nannan Li

A holographic 3D display system based on virtual array splicing of a spatial light modulator includes a laser configured to generate a coherent light beam, first, second and third beam splitters, first and second reflectors, a shutter array, a spatial filter array, a solid lens, first and second light beam deflection elements and a spatial light modulator. The first and second beam splitters and the first reflector are configured to split the light beam generated by the laser into three parallel light beams to irradiate the shutter array. The shutter array is configured to control the three parallel light beams to sequentially pass therethrough according to a set time sequence. The three parallel light beams passing through the shutter array are expanded and collimated by the spatial filter array and the solid lens to form three parallel light beams with the same size and uniform intensity.

Holographic 3D display system based on virtual array splicing of spatial light modulator

Embodiments of the present disclosure provide a silicon-based optical antenna with a reflective layer and a preparation method therefor. The silicon-based optical antenna comprises: an SOI substrate, the SOI substrate at least comprises a bottom silicon layer, a buried oxide layer, and a top silicon layer, the buried oxide layer is located between the bottom silicon layer and the top silicon layer, the top silicon layer is etched to form a row of waveguides, spacings between the waveguides in the row of the waveguides are in an uneven distribution, each waveguide of the row of the waveguides is etched with gratings, the bottom silicon layer is formed with a groove directly reaching a surface of the buried oxide layer facing the bottom silicon layer, and the surface of the buried oxide layer in the groove is formed with a metal reflective layer.

Silicon-based optical antenna with reflective layer and preparation method therefor

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Beijing, China

Zhaosong Li