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Microwave photonic crystal and preparation method thereof

A technology of microwave photons and crystals, which is applied in the direction of light guides, optics, optical components, etc., can solve the problems of poor device integrity, loose connection, and affecting the performance of photonic crystals, and achieve the effects of maintaining consistency, avoiding voids, and good fusion effects

Active Publication Date: 2014-10-01
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The problem to be solved by the present invention is to provide a microwave photonic crystal, which is used to solve the problem that the connection between the components of the photonic crystal is not tight during the preparation process, and the integrity of the device is poor, which affects the performance of the photonic crystal.

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  • Microwave photonic crystal and preparation method thereof
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  • Microwave photonic crystal and preparation method thereof

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Embodiment 1

[0032] In order to solve the above technical problems, the present invention provides a microwave photonic crystal, the structure of the microwave photonic crystal is as follows figure 1 , figure 2 As shown, the microwave photonic crystal includes an upper surface 1, a lower surface 2 and a plurality of dielectric pillars 3 arranged in a periodic array, and the dielectric pillars 3 are respectively connected to the upper surface 1 and / or the lower surface The connection gaps 4 of 2 are fused and connected through nanoparticles 5 to obtain the microwave photonic crystal, so as to meet the high quality factor Q requirement of the microwave photonic crystal. It should be noted that when the size of the material reaches the nanometer scale, due to the influence of the size effect, the specific surface energy is greatly increased, so that the melting point of the nanoparticles 5 is much lower than that of the same material in bulk, for example When the size of gold is close to th...

Embodiment 2

[0040] The difference between this embodiment and the above embodiments is that in this embodiment, the dielectric column 3 is made of the same material as the upper surface 1 and the lower surface 2 , preferably a metal material such as oxygen-free copper.

[0041] Preferably, in order to maintain the consistency of the microwave photonic crystal material, simplify the preparation process, and improve the performance of the microwave photonic crystal, such as Figure 4 As shown, the microwave photonic crystal includes an upper surface 1 and a lower surface 2. The lower surface 2 has dielectric cylinders 3 directly machined and arranged in a periodic array. The dielectric cylinders 3 and the upper surface The connection gaps 4 of the surface 1 are fused and connected through the nanoparticles 5 to obtain the microwave photonic crystal. The specific preparation steps are as follows, taking the surface material and the material of the dielectric column as oxygen-free copper, and...

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Abstract

The invention provides a microwave photonic crystal and a preparation method thereof. The microwave photonic crystal comprises dielectric cylinders arranged periodically, and an upper surface and a lower surface axially and approximately vertical to the dielectric cylinders, wherein the dielectric cylinders and connection gaps of the upper surface and the lower surface are in fuse connection via nano particles. The microwave photonic crystal provided by the invention adopts the same nano particle material as the entire device to serve as fuse material, fuse assembly of the microwave photonic device at a low temperature can be carried out, the problems that connection among each part is not tight and integrity of the device is poor in the traditional microwave photonic crystal device processing technology can be solved, the processing performance of the photonic crystal device is greatly enhanced, and the microwave photonic crystal and the preparation method thereof can be widely applied to fields of a microwave resonant cavity, an light source of an integrated light path, waveguide and the like.

Description

technical field [0001] The invention relates to the technical field of photonic crystals, in particular to a microwave photonic crystal and a preparation method thereof. Background technique [0002] Photonic crystal (photonic crystal: PC) is a kind of macroscopic structure composed of metal or dielectric materials with periodic lattice arrangement, which can produce the required photonic bandgap structure through proper design and construction of its periodic arrangement, thereby preventing Or allow light or electromagnetic waves of a specific frequency to propagate in certain directions, thereby achieving the purpose of changing or even controlling the propagation of light or electromagnetic waves. Photonic crystals are widely used in thresholdless lasers, lossless mirrors, curved optical paths, optical microcavities with high quality factors, nonlinear switches and amplifiers with low drive energy, etc. [0003] Two-dimensional photonic crystals, which are currently stud...

Claims

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Application Information

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IPC IPC(8): G02B6/122G02B6/136
Inventor 章健徐一鸣李冬松
Owner SHANGHAI UNITED IMAGING HEALTHCARE