Chinese Optics Letters, 2020, 18 (10): 102201, Published Online: Sep. 1, 2020
Arbitrarily shaped retro-reflector by optics surface transformation Download: 886次
Abstract
A novel way to design arbitrarily shaped retro-reflectors by optics surface transformation is proposed. The entire design process consists of filling an optic-null medium between the input and output surfaces of the retro-reflector, on which the points have 180 deg reverse corresponding relations. The retro-reflector can be designed to be very thin (a planar structure) with high efficiency. The effective working angles of our retro-reflector are very large (from ?80 deg to +80 deg), which can, in principle, be further extended. Layered metal plates and zero refractive index materials are designed to realize the proposed retro-reflector for a TM polarized beam.
Fei Sun, Yichao Liu, Yibiao Yang, Zhihui Chen, Sailing He. Arbitrarily shaped retro-reflector by optics surface transformation[J]. Chinese Optics Letters, 2020, 18(10): 102201.