A Hall sensor capable of detecting intensity of incident light

A Hall sensor and incident light technology, applied in the field of space optics, can solve the problem that Hall sensors cannot perform light detection, etc., and achieve the effect of simple structure and high sensitivity

Inactive Publication Date: 2019-01-11
中山科立特光电科技有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem that the existing Hall sensor cannot perform light detection

Method used

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  • A Hall sensor capable of detecting intensity of incident light
  • A Hall sensor capable of detecting intensity of incident light
  • A Hall sensor capable of detecting intensity of incident light

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Embodiment 1

[0023] In order to overcome the problem that the existing Hall sensor cannot perform light detection. The present invention provides a figure 1 , figure 2 The shown Hall sensor that can detect the intensity of incident light includes a substrate layer 1, a metal layer 2 disposed above the substrate layer 1, a light-transmitting conductive layer 3 disposed above the metal layer 2, and the light-transmitting conductive layer 3 There are also a plurality of metal strips 4 arranged in parallel on the top, so that a Fabry-Perot cavity is formed between the metal strips 4 and the metal layer 2, and the Fabry-Perot cavity is filled with light-transmitting Conductive layer 3, so that resonance can be formed to change the effective refractive index of incident light; electrodes 6 are arranged on the left and right sides of the light-transmitting conductive layer 3, so that voltage can be applied to the light-transmitting conductive layer 3, which can be adjusted by loading different ...

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Abstract

The invention relates to a Hall sensor capable of detecting incident light intensity, comprising a substrate layer, a metal layer arranged above the substrate layer, a light-transmitting conductive layer arranged above the metal layer, and a plurality of metal strips arranged in parallel above the light-transmitting conductive layer. The left and right sides of the light-transmitting conductive layer are provided with electrodes; Magnetic poles are arranged on the front and rear sides of the light-transmitting conductive layer. The Hall sensor which can detect the intensity of incident light can change the current of the sensor through the influence of light on the electric field of the Hall effect, and reflect the change of the light through the detection of the current. The Hall sensor not only has simple structure, but also has high sensitivity, in particular, for light of specific frequency capable of resonating with Fabry-Perot cavity. By changing the voltage applied to the transparent conductive layer, the response of the transparent conductive layer to the light of different frequencies can be adjusted, the resonant frequency of the Fabry-perot cavity is changed so that theresonant frequency can be adjusted.

Description

technical field [0001] The invention relates to the technical field of space optics, in particular to a Hall sensor capable of detecting incident light intensity. Background technique [0002] The Hall sensor is a magnetic field sensor made according to the Hall effect. Hall effect is a kind of magnetoelectric effect, which was discovered by Hall (A.H.Hall, 1855-1938) in 1879 while studying the conduction mechanism of metals. It was later found that semiconductors, conductive fluids, etc. also have this effect. Hall effect: If a metal or semiconductor sheet is placed vertically in a magnetic field with a magnetic induction intensity of B, when a current is passed in the direction of the vertical magnetic field, an electric field is generated in a direction perpendicular to the current and the magnetic field. Physical phenomenon. Since the Hall sensor can detect the direction and magnitude of the magnetic field, it can be widely used in industrial automation technology, det...

Claims

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Application Information

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IPC IPC(8): H01L43/04H01L43/06H01L43/14G01J1/42
CPCG01J1/42H10N52/80H10N52/01H10N52/101
Inventor 不公告发明人
Owner 中山科立特光电科技有限公司
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