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Method for remarkably improving ultraviolet response of optical detector and detector with remarkably improved ultraviolet response

A light detector, a remarkable technology, applied in the direction of spectrometry/spectrophotometry/monochromator, optical radiation measurement, radiation pyrometry, etc., can solve the limitation of the use range of small spectrometers, the inability to realize ultraviolet band detection, The problem of high cost of the whole spectrometer can achieve the effect of low cost, improved performance and enhanced ultraviolet response

Inactive Publication Date: 2011-08-03
TSINGHUA UNIV +1
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Problems solved by technology

[0002] At present, light detectors such as small spectrometers use a large number of ordinary linear array detectors. Due to the limitation of the detection wavelength range of the detectors, it is impossible to realize the detection of ultraviolet bands, which greatly limits the use range of these small spectrometers.
However, high-end detectors that can detect ultraviolet rays are often expensive, making the cost of the spectrometer very high

Method used

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  • Method for remarkably improving ultraviolet response of optical detector and detector with remarkably improved ultraviolet response
  • Method for remarkably improving ultraviolet response of optical detector and detector with remarkably improved ultraviolet response
  • Method for remarkably improving ultraviolet response of optical detector and detector with remarkably improved ultraviolet response

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Embodiment

[0034] According to a specific embodiment of the present invention, fluorescent coating is vacuum coating, and the model that uses Beijing Beiyi Innovation Instrument Factory to produce is DM450C coating machine to carry out; Used CCD (Charge-coupled Device, Charge-coupled Device); is SONY company Produced ILX554B CCD.

[0035] The experimental steps of fluorescent coating are as follows:

[0036] In the first step, after cleaning the coating machine, raise the bell jar of the coating machine, put coronene (Coronene CAS: 191-07-1; purity: >95.0% (GC); packaging: 1G; brand: Japan TCI) 80mg In the heating tungsten boat, pay attention to placing it evenly to avoid powder splashing caused by uneven heating. Put the CCD and glass slide to be coated on the coating frame in the bell jar, and fix it with transparent tape;

[0037] In the second step, after putting down the bell jar, turn on the mechanical pump to start vacuuming, and then turn on the diffusion pump to start high vac...

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Abstract

The invention relates to a method for remarkably improving ultraviolet response of an optical detector. The method comprises the following steps of: dismounting protective glass on the detector surface, wherein the protective glass is hardly response to an ultraviolet ray; directly depositing fluorescent powder, such as Coronene, lumogen and the like on a sensitive element surface through certain means to form a fluorescent film; and then installing a quartz sheet on the detector surface. When the ultraviolet ray irradiates the fluorescent film surface, a fluorescent substance is excited and transitioned and emits an optical wave of a visible wavelength within a very short time, the optical wave is directly received by the sensitive element such that the detector can detect the ultraviolet ray indirectly; the detector is installed in a spectrograph and calibrated by the wavelength and the responsibility to obtain an accurate spectral line. Therefore, the accurate detection function on the ultraviolet ray, which is only available in some high-end detectors, can be realized by a common and inexpensive detector; and the detector has favorable effect and low cost.

Description

technical field [0001] The present invention relates to a method for realizing successful and accurate detection of ultraviolet bands which cannot be detected originally by ordinary photodetectors, and a detector with significantly enhanced ultraviolet response. Background technique [0002] At present, light detectors such as small spectrometers use a large number of ordinary linear array detectors. Due to the limitation of the detection wavelength range of the detectors, it is impossible to realize the detection of ultraviolet bands, which greatly limits the use range of these small spectrometers. However, high-end detectors capable of detecting ultraviolet rays are often expensive, making the cost of the spectrometer very high. Contents of the invention [0003] The invention provides a method for significantly enhancing the ultraviolet response of the detector. By using this method, the detector of the original ordinary linear array detector can realize the function of...

Claims

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Application Information

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IPC IPC(8): G01J3/02G01J3/28
Inventor 孙利群田禾杜晨光章恩耀丁志田
Owner TSINGHUA UNIV
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