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Circularly polarized light polarization state detector based on film bulk acoustic resonator

A thin-film bulk acoustic wave, circularly polarized light technology, applied in electrical components, impedance networks, etc., can solve problems such as the inability of photothermal detectors to detect

Inactive Publication Date: 2019-09-27
金华伏安光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology provides an improved device for detecting linearly polarizing lights that has unique properties such as being able to distinguish between two types of polarizations - one rotating towards right or left-handedness (R) direction while another type moves along its own axis at some angle from it's original orientation.

Problems solved by technology

This patented describes two technical problem addressed by this patents: current phototherapy devices only work with specific colors (photons) while being able to measure both red green blue and yellowish white lights simultaneously without affecting their color balance). Additionally, there may be limitations when measuring linear polarization components due to lack of sensitivity towards circularly oriented waves.

Method used

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  • Circularly polarized light polarization state detector based on film bulk acoustic resonator
  • Circularly polarized light polarization state detector based on film bulk acoustic resonator
  • Circularly polarized light polarization state detector based on film bulk acoustic resonator

Examples

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Embodiment 1

[0021] This embodiment provides a Figure 1 ~ Figure 2 The shown polarization state detector based on the circularly polarized light of the film bulk acoustic resonator includes a substrate layer 1, which mainly plays a supporting role, and the substrate layer 1 is made of silicon dioxide; The top of the bottom layer 1 is provided with a first electrode layer 2, the top of the first electrode layer 2 is provided with a piezoelectric film layer 3; the piezoelectric film layer 3 is provided with a second electrode layer 4, the first electrode layer 2, The piezoelectric film layer 3 and the second electrode layer 4 together form a film bulk acoustic resonator, and a chiral structure array 5 is arranged above the second electrode layer 4; the chiral structure array 5 absorbs circularly polarized light of different polarization states Different, so the change of the resonant wavelength of the thin film bulk acoustic resonator is different, and the detection of the polarization stat...

Embodiment 2

[0026] This embodiment provides a figure 1 , image 3 The shown polarization state detector based on the circularly polarized light of the film bulk acoustic resonator includes a substrate layer 1, which mainly plays a supporting role, and the substrate layer 1 is made of silicon dioxide; The top of the bottom layer 1 is provided with a first electrode layer 2, the top of the first electrode layer 2 is provided with a piezoelectric film layer 3; the piezoelectric film layer 3 is provided with a second electrode layer 4, the first electrode layer 2, The piezoelectric film layer 3 and the second electrode layer 4 together form a film bulk acoustic resonator, and a chiral structure array 5 is arranged above the second electrode layer 4; the chiral structure array 5 absorbs circularly polarized light of different polarization states Different, so the change of the resonant wavelength of the thin film bulk acoustic resonator is different, and the detection of the polarization stat...

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Abstract

The invention relates to a circularly polarized light polarization state detector based on a film bulk acoustic resonator, which comprises a substrate layer, a first electrode layer is arranged above the substrate layer, and a piezoelectric film layer is arranged above the first electrode layer; a second electrode layer is arranged on the piezoelectric film layer, and a chiral structure array is arranged above the second electrode layer. In the circularly polarized light polarization state detector based on a film bulk acoustic resonator, the film bulk acoustic wave resonator is provided with the chiral structure array, the chiral structure array absorbs circularly polarized light of different polarization states differently, and therefore changes of resonant wavelengths of the film bulk acoustic wave resonator are different, and polarization state detection of the circularly polarized light is achieved.

Description

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Claims

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Application Information

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Owner 金华伏安光电科技有限公司