Circularly polarized light detector
A circularly polarized light and detector technology, which is applied in the field of circularly polarized light detectors, can solve problems such as low detection accuracy, high cost, and complex structure, and achieve the effects of high detection accuracy, low cost, and simple structure
Inactive Publication Date: 2020-11-24
刘翡琼
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Problems solved by technology
The use of multiple independent units with different functions is not only complex in structure, high in cost, but also low in detection accuracy
Method used
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Embodiment 1
[0028] figure 1 A structural diagram of a circularly polarized light detector provided by an embodiment of the present invention, figure 2 A top view of a circularly polarized light detector provided for an embodiment of the present invention, such as figure 1 and figure 2 As shown, the detector includes an input electrode 21 , a sensitive part 3 , an output electrode 22 and a substrate 1 . The input electrode 21 , the sensitive part 2 and the output electrode 22 are arranged on the substrate 1 , and the sensitive part 3 is arranged between the input electrode 21 and the output electrode 22 . The sensitive part 3 is composed of multiple chiral structures arranged periodically, and the material of the substrate 1 is a piezoelectric material.
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The invention relates to a circularly polarized light detector which comprises an input electrode, a sensitive part, an output electrode and a substrate, wherein the input electrode, the sensitive part and the output electrode are arranged on the substrate, and the sensitive part is arranged between the input electrode and the output electrode; the sensitive part consists of a plurality of chiralstructures which are periodically arranged, and the substrate is made of a piezoelectric material. Heat absorbed by the sensitive part under irradiation of different circularly polarized light is different so that frequency drift of electric signals outputted by the output electrode is different to detect the circularly polarized light, the structure is simple, the cost is low, and the detection precision is high.
Description
technical field [0001] The invention relates to the technical field of circularly polarized light detection, in particular to a circularly polarized light detector. Background technique [0002] Polarized light refers to a light wave in which the vibration direction of the light vector is constant, or has certain regular changes. According to its properties, polarized light can be divided into plane polarized light (linearly polarized light), circular polarized light, and partially polarized light. If the vibration direction of the electric vector of the light wave is limited to a certain plane, this kind of polarized light is called plane polarized light, because the direction of vibration is a straight line in the propagation process, so it is also called linearly polarized light. If the electric vector of the light wave changes regularly over time, that is, the trajectory of the end of the electric vector is circular or elliptical on a plane perpendicular to the directio...
Claims
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Login to View More IPC IPC(8): G01J4/04
CPCG01J4/04
Inventor 不公告发明人
Owner 刘翡琼