One-dimensional photonic crystal optical micro-cavity based on waveguide comprising low-refractive-index cores

Abstract

The invention discloses a one-dimensional photonic crystal optical micro-cavity based on a waveguide comprising low-refractive-index cores. The one-dimensional photonic crystal optical micro-cavity is manufactured on the waveguide comprising the low-refractive-index cores, the waveguide is high in refractive index contrast, the one-dimensional photonic crystal optical micro-cavity comprises a region with a gradient lattice constant and regions with periodic lattice constants, the region with the gradient lattice constant is positioned in the center of a micro-cavity, the lattice constant of the region with the gradient lattice constant is symmetrically and linearly increased from the middle of the micro-cavity to two sides of the micro-cavity, and the regions with the periodic lattice constants are positioned on two sides of the region with the gradient lattice constant. The one-dimensional photonic crystal optical micro-cavity has the advantages that model are extremely small in size V owing to the characteristic that the light intensity is rapidly increased due to continuity of an electric displacement vector at interface positions of the low-refractive-index slit or hollow cores of the waveguide, and gradient transition and matching among the models are realized owing to the region with the gradient lattice constant in the center of the micro-cavity, so that an ultrahigh quality factor Q value is obtained; the one-dimensional photonic crystal optical micro-cavity is simple in structure and compact in size, can be processed by a CMOS (complementary metal oxide semiconductor) technology, is easy to integrate and expand, and can be conveniently manufactured at a low cost; and other low-refractive-index materials can be planted in the slits or hollow cores in the micro-cavity, and the one-dimensional photonic crystal optical micro-cavity can be widely applied to fields of nanometer laser devices, biochemical sensing, optical micro-fluid, optical micro-machines and the like.

Description

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AI Technical Summary

Benefits of technology

This patented technology allows for smaller devices that have higher performance than previous designs due to their ability to achieve better light transmission through an interface between two different media without losing much energy during signal transferring. It achieves this by utilizing special structures made from specific material types such as silicon nitride, fluoropolymer resins, epoxy resists, etc., resulting in improved efficiency at transmitting signals over longer distances compared to traditional methods.

Problems solved by technology

This patents discuss various ways to improve the performance of optofluidic devices like diodes and amplifiers. One method involves making smaller structures called nanocapillaries, which helps increase their efficiency without requiring much energy input from external sources. Additionally, studying how these tiny structures behave when subjected to strong electromagnetic radiation allows us to study other physical phenomena related to them.

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