Chiral photonic crystals from sphere packing

Liu, Tao; Chan, Ho-Kei; Wan, Duanduan

doi:10.1039/d3sm00680h

Cited by 1 publication

(1 citation statement)

References 64 publications

(135 reference statements)

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“…Photonic crystals (PhCs) possess photonic band gaps due to periodically changing refractive indexes of the medium, which makes them highly promising for various applications [1][2][3][4][5]. Currently, there are several common methods for fabricating PhCs, including colloidal selfassembly [6][7][8], two-photon polymerization [9][10][11] and multi-beam laser interference lithography (MBLIL) [12][13][14][15][16][17][18][19][20][21]. Among these techniques, MBLIL has become a preferred method for fabricating PhCs due to its advantages, such as fast speed, large-area and one-step forming.…”

Section: Introductionmentioning

confidence: 99%

Adjustable Lattice Design for 3D Photonic Crystals by 4+1 Beam Interference

Wang,

Dong,

Liu

et al. 2024

Preprint

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This work presents a novel method of fabricating unidirectional adjustable periodic lattice structures via multi-beam interference. The umbrella-like 4+1 beams interference fields are categorized by four different polarization combinations, expressed as a function of incident angles. The results show that one of these four interference fields displays relatively stable three-dimensional (3D) interference patterns, which can create simple tetragonal, simple cubic, and simple hexagonal lattices. Especially, when the umbrella-like distribution is disrupted, adjusting the incident angles of two beams can induce unidirectional compression or elongation of simple tetragonal and simple hexagonal lattices. In addition, the initial phases will not affect interference pattern structures.

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