Near-field microscope of optical wave band

A microscope and near-field technology, used in scanning probe microscopy, scientific instruments, instruments, etc., can solve the problem of difficult spectral detection of optical signals, difficult to achieve signal-to-noise ratio, and difficult to achieve ultra-close distance control and scanning. Control and other issues to achieve the effect of increasing analytical capabilities
CN1710402AInactive Publication Date: 2005-12-21HUAZHONG UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
HUAZHONG UNIV OF SCI & TECH
Publication Date
2005-12-21
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

A near field microscope of optical band consists of near field viewfinder, near field coding plat , light wave guide for switching over , beam splitting system and photoelectric probe . It features setting near field coding plate as sub wavelength microhole array circulated as per S matrix distribution with microhole diameter being less than r value in Rayleigh criterion, picking up light coming from viewfinder and extracting it in microhole and converting it to be conduction wave for being sent to the following device.
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Description

technical field

[0001] The invention belongs to an optical band near-field detection device. Background technique

[0002] Optical microscopes use uncharged photons as information carriers, which have little interference with cells and are a basic tool for biological / medical research. Although other types of microscopes, such as electron microscopes and scanning tunneling microscopes, already have sub-nanometer resolution, because the characteristic energy of electromagnetic waves in the optical band is similar to the molecular motion energy of biological substances, certain forms of interaction are prone to occur , so that these substances can be further understood through this interaction without damaging the biological activity of these substances. So many advanced laboratories in the world have been working hard to explore the characteristics of optical near-field so far, so as to use these characteristics to serve the development of human science and technology. One o...

Claims

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