Method for magnifying corneal scattered signal based on phononic crystal resonance technology

A technology of phononic crystals and scattering signals, which is applied in the field of amplifying Brillouin scattering signals based on phononic crystals, and can solve problems such as the lack of solutions for amplifying scattering signals

Inactive Publication Date: 2019-10-22
NANCHANG HANGKONG UNIVERSITY
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Problems solved by technology

At present, the methods for measuring the elastic modulus of the cornea by using Brillouin scattering basically revolve around the use of high-sensitivity photon receivers and the measurement by improving the accuracy of the system, and the process of generating Brillouin scattering signals The method of amplifying the scattered signal lacks a corresponding solution in

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  • Method for magnifying corneal scattered signal based on phononic crystal resonance technology

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Embodiment Construction

[0011] A method for amplifying corneal scattering signals based on phononic crystal resonance technology, semiconductor continuous laser: coherence laser 1, convex lens 1 2, diaphragm 1 3, convex lens 2 4, convex lens 3 5, phononic crystal device stage 6, Cornea 7, convex lens 4 8, convex lens 5 9, aperture 2 10, convex lens 6 11, F-P scanning etalon 12, detector 13, F-P scanning etalon controller 14, driver 15, photon information acquisition card 16, computer 17 The specific process of the above-mentioned amplified signal is a semiconductor continuous laser: the coherence laser 01 emits a laser beam with a wavelength of 532nm, which passes through a convex lens-2 diaphragm-03 to filter the light beam. The sub-crystal device stage 06 is focused into the cornea 07, and the Brillouin scattering signal is excited at the focal point and transmitted in the forward direction, passing through convex lens 4 8, convex lens 5 9, aperture 2 10, convex lens 6 11, and a driver 15 The F-P s...

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Abstract

The invention provides a method for amplifying a corneal scattered signal based on a phononic crystal resonance technology. The corneal elastic modulus is measured by detecting a Brillouin scattered signal, phononic crystal structure signal resonance is adopted for amplifying the weak Brillouin scattered signal in the cornea, and the point lies in that the Brillouin scattered signal can be amplified by a phonon crystal to measure the corneal elastic modulus. A system device composed of a semiconductor continuous laser, a phononic crystal structure and other equipment is adopted, the Brillouinscattered signal is generated through a semiconductor continuous laser system, signal amplification in the phononic crystal is realized, the amplified signal is received by a receiving system to obtain the Brillouin scattered signal of the cornea, and corneal elastic characteristics are further analyzed. The method has the advantage that a phononic crystal signal amplification technology is adopted for amplifying the Brillouin scattered signal.

Description

technical field [0001] The invention relates to a method for amplifying Brillouin scattering signals based on phononic crystals, in particular to a method for amplifying corneal scattering signals based on acousto-optic crystal resonance technology. Background technique [0002] As a method for amplifying the Brillouin scattering signal based on the phonon crystal structure, the present invention mainly amplifies the weak Brillouin scattering signal through the technique of amplifying the phonon crystal resonance signal. The idea of ​​the invention is that the use of Brillouin scattering to detect the elastic properties of biological tissues has broad application prospects, but there are not many related reports on the method of amplifying the scattering signal. At present, the methods for measuring the elastic modulus of the cornea by using Brillouin scattering basically revolve around the use of high-sensitivity photon receivers and the measurement by improving the accurac...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B3/10
CPCA61B3/10
Inventor 刘严欢张余宝朱羿叡罗宁宁史久林何兴道
Owner NANCHANG HANGKONG UNIVERSITY
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