A kind of terahertz blue phase liquid crystal grating and its manufacturing method
A technology of blue phase liquid crystals and manufacturing methods, which is applied in the field of terahertz wave modulation devices, can solve problems such as the lack of high-performance modulation devices in the terahertz wave band, difficulties in the application of blue phase liquid crystals, etc., and solve the problems of blue phase temperature width, volume reduction, The effect of simple device structure
Active Publication Date: 2021-08-31
SHANGHAI RADIO EQUIP RES INST
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[0014] The present invention proposes a terahertz blue-phase liquid crystal grating and its manufacturing method, which are used to modulate the distribution and intensity of terahertz waves to solve the problem of lack of high-performance modulation devices in the terahertz band and the difficulty in the application of blue-phase liquid crystals in the terahertz band technical problem
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[0042]The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. In particular, the following examples are only used to illustrate the present invention, but not to limit the scope of the present invention. Similarly, the following embodiments are only some of the embodiments of the present invention rather than all of them, and those skilled in the art can obtain them through logical analysis, reasoning or limited experiments on the basis of the prior art based on the concept of the present invention All technical solutions should be within the scope of protection defined by the claims.
[0043] see figure 1 , figure 1 It is a three-dimensional structure diagram of a preferred embodiment of the terahertz blue-phase liquid crystal grating of the present invention; the terahertz blue-phase liquid crystal grating includes but not limited to the following elements: upper substrate 1, lower substrate 2, upper el...
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Abstract
The invention discloses a terahertz blue-phase liquid crystal grating structure and a manufacturing method thereof. The structure comprises: an upper substrate, a lower substrate, an upper electrode layer, a lower electrode layer, and a blue-phase liquid crystal; The electrode layer is placed under the upper substrate; the lower electrode layer is placed on the lower substrate; the blue phase liquid crystal is placed between the upper electrode layer and the lower electrode layer; wherein, the upper electrode layer and the lower electrode layer are relatively dislocated, and the upper electrode layer An electric field is formed between the lower electrode layer and the blue phase liquid crystal. The upper electrode layer and the lower electrode layer of the present invention are transparent conductive polymer materials, the lower electrode layer is a periodic stripe structure, the upper electrode layer is a uniform plane, and a periodic electric field is formed between the upper electrode layer and the lower electrode layer to drive the blue phase liquid crystal , so that the blue phase liquid crystal produces a periodic refractive index distribution. The invention fills the blank of the blue-phase liquid crystal grating in the terahertz band, provides a way for modulating the terahertz wave, and has important significance for the practical development of the terahertz device.
Description
technical field [0001] The invention relates to the technical field of terahertz wave modulation devices, in particular to a terahertz blue-phase liquid crystal grating and a manufacturing method thereof, which mainly modulates terahertz waves and solves the problem of few terahertz wave band modulation devices and poor performance. Background technique [0002] In the past few decades, the development of terahertz photonics has made great progress, and the application of terahertz technology in material dynamics, high-speed communication, biological imaging and environmental monitoring has been realized. The vigorous development of terahertz technology has also greatly increased the demand for terahertz quasi-optical components, especially the demand for terahertz gratings. However, there are very few reports on gratings in the terahertz band, and they are still to be developed. [0003] Liquid crystal materials are particularly suitable for use in terahertz devices becaus...
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IPC IPC(8): G02F1/1343G02F1/137G02F1/1333
CPCG02F1/1333G02F1/134309G02F1/13439G02F1/137G02F1/133302G02F1/13793
Inventor 都妍武亚君霍熠炜
Owner SHANGHAI RADIO EQUIP RES INST