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Infrared laser detection card and method for making same

An infrared laser and detection card technology, which is applied in the field of infrared laser detection, can solve the problems of small detection wavelength range and low up-conversion luminous efficiency of the detection card, and achieve the effects of improving luminous efficiency, improving use efficiency, and enhancing detection capabilities

Inactive Publication Date: 2007-08-08
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an infrared laser detection card and a preparation method thereof in order to solve the technical problems of the existing detection card with a small detection wavelength range and low up-conversion luminous efficiency. The infrared laser detection card uses rare earth nano-crystal powder as Up-conversion materials that can detect the position and intensity of infrared lasers with a wavelength of 0.8-2.2 microns

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Molar component 30Si 2 O·15Al 2 o 3 40PbF 2 ·10CdF 2 :1Yb 2 o 3 · 4Er 2 o 3 Weigh the raw materials, mix and grind them in an agate mortar, put them into a platinum crucible, and burn them at 950°C for 2 hours, then quickly pour the molten glass liquid on the mold under high temperature conditions for rapid cooling, and obtain a transparent oxyfluoride precursor glass Materials: The precursor glass is heat-treated at 450°C for 1 hour, and then cooled to room temperature with the furnace temperature to obtain a rare earth ion-doped glass ceramic containing nano-crystalline oxyfluoride, which is ground to obtain a rare-earth nano-crystalline powder: the rare-earth nano The microcrystalline powder is sprayed on the substrate with coordinate marks and transparent epoxy resin glue. The thickness of the microcrystalline powder is 3.0 microns, and then it is sealed with a PVC plastic sealing machine. The size of the test card is 85×55mm 2 .

Embodiment 2

[0034] Molar component 30Si 2 O·15Al 2 o 3 40PbF 2 ·10CdF 2 :1Yb 2 o 3 4Ho 2 o 3Weigh the raw materials, mix and grind them in an agate mortar, put them into a platinum crucible, and burn them at 950°C for 2 hours, then quickly pour the molten glass liquid on the mold under high temperature conditions for rapid cooling, and obtain a transparent oxyfluoride precursor glass Materials: The precursor glass was heat-treated at 450°C for 2 hours, and then cooled to room temperature with the furnace temperature to obtain rare earth ion-doped glass ceramics containing nano-crystalline oxyfluoride, and the rare-earth nano-crystalline powder was obtained after grinding: the rare-earth nano The microcrystalline powder is sprayed on the substrate with coordinate marks and transparent epoxy resin glue. The thickness of the microcrystalline powder is 3.0 microns, and then it is sealed with a PVC plastic sealing machine. The size of the test card is 85×55mm 2 .

Embodiment 3

[0036] Molar component 30Si 2 O·15Al 2 o 3 40PbF 2 ·10CdF 2 :1Yb 2 o 3 0.5Tm 2 o 3 3.5Er 2 o 3 Weigh the raw materials, mix and grind them in an agate mortar, put them into a platinum crucible, and burn them at 950°C for 2 hours, then quickly pour the molten glass liquid on the mold under high temperature conditions for rapid cooling, and obtain a transparent oxyfluoride precursor glass Materials: The precursor glass was heat-treated at 480°C for 2 hours, and then cooled to room temperature with the furnace temperature to obtain rare earth ion-doped nano-crystalline oxyfluoride glass ceramics, and the rare-earth nano-crystalline powder was obtained after grinding: the rare-earth nano- The microcrystalline powder is sprayed on the substrate with coordinate marks and transparent epoxy resin glue. The thickness of the microcrystalline powder is 3.0 microns, and then it is sealed with a PVC plastic sealing machine. The size of the test card is 85×55mm 2 .

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Abstract

The invention discloses an infrared laser detection card and its preparation method. The infrared laser detection card comprises the bottom substrate and the nanocrystalline powder coated in the bottom substrate and mixed with the rare earth ion, and using PVC plastic molding; the chemical composition of the said nanocrystalline powder is Si2O.Al2O3.PbF2.CdF2:Re3+, in which Re3+ is one or more combinations of the rare earth ion Yb, Er, Pr, Ho, Eu or Tm. The nanocrystal is that the rare-earth ions exists in the fluoride nanocrystal of glass ceramic, the nanocrystal size for the 10-90nm. The invention uses the rare earth nanocrystalline powder for the infrared laser detection card of luminous preparation, and when infrared laser irradiating, the rare earth ion-doped nanocrystalline powder takes luminous effect to convert the unseen infrared laser into visible light, and it can detect the infrared laser location and intensity with the 0.8-2.2 micron wavelength.

Description

【Technical field】 [0001] The invention relates to the field of infrared laser detection, in particular to a photoluminescent infrared laser detection card prepared with rare earth nano-microcrystalline powder as a light-emitting layer and a preparation method thereof. 【Background technique】 [0002] Infrared laser wavelengths are in the invisible range of human eyes, which brings difficulties in detection and adjustment during use. There are two existing infrared laser detection technologies. One is to use an InGaAs infrared detector connected to an electronic device to accurately measure the position and intensity of an infrared laser. Its weakness lies in its complex structure and high cost; the other is an infrared sensor card or Detector cards, infrared sensor cards made of organic materials have high sensitivity but are prone to saturation, and cannot display the spot size and mode. However, the existing inorganic infrared laser detection cards have a limited range of d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J1/58G01J1/48C03C17/02C03C17/23C03C23/00
Inventor 赵丽娟余华
Owner NANKAI UNIV
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