Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 30, Issue 11, Pages 1001-1004Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2018.2828024
Keywords
Optical materials and properties; microstructure; photonic quasicrystals; lenses
Funding
- National Natural Science Foundation of China [61405058]
- Natural Science Foundation of Hunan Province [2017JJ2048]
- Fundamental Research Funds for the Central Universities [531107050979]
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The circular main channels of a photon stream in a two-dimensional photonic quasicrystal lens are strictly defined. Both the critical state width range for unstable focusing and the width limit for stable focusing are deduced. Furthermore, the critical state width range and the width limit can be different for varying thicknesses of lens. A relationship between the wavelength of a point source and the minimum size of such lenses is proposed for double-photon-stream-beam interference focusing.
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