Off-axis incident multi-wavelength dispersion regulation and control supersurface based on dielectric cylinder structure

• Main Authors: MA XIAOLIANG, LUO XIANGANG, PU MINGBO, DOU KAIHUA, LI XIONG
• Format: Patent
• Language: Chinese; English
• Published: 14.06.2019
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

The invention provides an off-axis incident multi-wavelength dispersion regulation and control supersurface based on a dielectric cylinder structure. The off-axis incident multi-wavelength dispersionregulation and control supersurface comprises a dielectric cylinder, a dielectric adhesion layer and a metal reflective layer from top to bottom. The off-axis incident multi-wavelength dispersion regulation and control supersurface provided by the invention has the advantages of ingenious design and simple structure, efficient regulation and control capability on visible light multi-wavelength canbe realized by high-refractive-index dielectric cylinder structures with different widths, and an independent phase regulation and control effect is achieved on the simultaneous incidence of multiplewavelengths. The off-axis incident multi-wavelength dispersion regulation and control supersurface provided by the invention can be used by a color imaging synthesis device in a 3-DLP laser projection system, and is of great s