CN1144766C - Preparation method for reproducing three-dimensional colorful luminous pattern under ultraviolet excitation - Google Patents
Preparation method for reproducing three-dimensional colorful luminous pattern under ultraviolet excitation Download PDFInfo
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- CN1144766C CN1144766C CNB01105221XA CN01105221A CN1144766C CN 1144766 C CN1144766 C CN 1144766C CN B01105221X A CNB01105221X A CN B01105221XA CN 01105221 A CN01105221 A CN 01105221A CN 1144766 C CN1144766 C CN 1144766C
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- pattern
- transparent medium
- luminous
- femtosecond
- dimensional
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- 230000005284 excitation Effects 0.000 title claims abstract description 6
- 238000002360 preparation method Methods 0.000 title claims description 6
- 238000000034 method Methods 0.000 claims abstract description 16
- 230000007547 defect Effects 0.000 claims abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 claims description 8
- 238000005229 chemical vapour deposition Methods 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 7
- 230000000638 stimulation Effects 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052691 Erbium Inorganic materials 0.000 claims description 2
- 229910052693 Europium Inorganic materials 0.000 claims description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052772 Samarium Inorganic materials 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000011651 chromium Substances 0.000 claims description 2
- 230000002950 deficient Effects 0.000 claims description 2
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 claims description 2
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910001385 heavy metal Inorganic materials 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 239000011572 manganese Substances 0.000 claims description 2
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 229910052723 transition metal Inorganic materials 0.000 claims description 2
- 150000003624 transition metals Chemical class 0.000 claims description 2
- 239000007787 solid Substances 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000012780 transparent material Substances 0.000 description 4
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009172 bursting Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- -1 rare earth ions Chemical class 0.000 description 1
- 230000007261 regionalization Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
A method for reproducing three-dimensional color luminous patterns under ultraviolet excitation utilizes femtosecond pulse laser with the pulse width of femtosecond magnitude and the energy density larger than or equal to the defect threshold of a transparent medium to induce the defect level structure generated in the transparent medium to form three-dimensional patterns, and the three-dimensional color luminous patterns are displayed by ultraviolet excitation. The three-dimensional pattern written inside the transparent medium will reproduce the color luminous pattern whenever it is irradiated with ultraviolet light, and will never change at room temperature. Is especially suitable for viewing the colorful luminous patterns in dark environment and has changeable characteristics.
Description
Technical field
The invention relates to the preparation method of luminous 3 D color pattern reproduced under ultraviolet stimulation, mainly is to utilize induced by ultrashort pulse laser transparent material internal structure change, and is rendered as the method for color three dimension luminous pattern when ultraviolet ray excited.
Background technology
Formerly technology (1) is utilized nanosecond (10 in Chinese patent ZL97234928.6
-9Second) yttrium aluminum garnet (YAG) laser beam of level pulse width causes bursting on the glass internal focus point, forms diffuse scattering and has constituted colourless solid pattern.This pattern constitutes by bursting an arrangement.
Technology (2) formerly, in the Chinese patent application 00127613.1, the formation method of the inner painted and 3 D colour pattern of a kind of transparent substance is provided, be to select the ultra-short pulse laser bundle of pulse width for use less than 10 psecs, focus on the opticglass of multiphoton absorption in the visible region, or be doped with the transparent medium inside of trivalent rare earth ions, because the special multi-photon reaction in focus place constitutes solid pattern, the solid pattern of display color under visible light.
Summary of the invention
Purpose of the present invention is with formerly technology is different, provide a kind of preparation method with luminous 3 D color pattern reproduced under ultraviolet stimulation, make the 3 D stereo pattern that writes transparent medium inside, no matter by day still in the dark, as long as shine the transparent medium that this contains solid pattern, just can reproduce the solid pattern of colorful light-emitting with ultraviolet light beam.
The preparation method of luminous 3 D color pattern reproduced under ultraviolet stimulation of the present invention utilizes femtosecond pulse to induce the inner defect level structure that produces of transparent medium to constitute three-D pattern, with ultraviolet ray excited, show the three-dimensional colour luminous pattern, concrete step is:
＜1〉choosing transparent medium is to be doped with active media rare earth elements europium or samarium or erbium etc.; Perhaps be doped with transition metal iron or manganese or chromium; Perhaps be doped with the glass of heavy metal element gold or silver, perhaps choosing transparent medium is the silica glass made from CVD (Chemical Vapor Deposition) method.
＜2〉selecting pulse width for use is the femtosecond pulse bundle of femtosecond magnitude, and its energy density is more than or equal to the defective threshold value of above-mentioned transparent medium.
＜3〉the femtosecond pulse beam focusing point that computerizeds control above-mentioned carries out motion scan according to the pattern trace of setting in above-mentioned transparent medium inside, finishes writing of pattern.
＜4〉with the above-mentioned transparent medium of UV-irradiation, display color luminous pattern with pattern.
The present invention at first finds: select suitable transparent material, be above-mentioned transparent medium, under the femtosecond pulse effect, the motion track of laser focusing point can form the structure variation of material, when with this transparent material of UV-irradiation, this structure variation district can produce the characteristic colorful light-emitting.If the structure variation of induced with laser is a spatial, then the colorful light-emitting pattern is three-dimensional.As long as use uviolizing, just can reproduce the colorful light-emitting pattern.This ultraviolet ray excited the luminous of transparent medium that contains pattern down at room temperature is forever constant.
The present invention and technology (1) formerly be disclosed utilizes nanosecond (10
-9Second) the YAG laser of level pulse width causes the glass focus point to burst (destructions) and inventive method (the seeing China Patent No. ZL972349286 for details) difference of the colourless solid pattern of diffuse scattering of formation; Also to cause in the transparent medium because structure variation district different to the three-dimensional color pattern formation method that absorption and reflection produced of visible light with ultra-short pulse laser at optical tech (2).The present invention becomes new texture by the induced with laser transparent material by primary formation earlier.This structure variation has plenty of the profile visible under daylight, what have then is that profile is sightless, then, is rendered as the colorful light-emitting pattern with UV-irradiation again.Therefore have more the change characteristic, and be particularly suitable for observing this colorful light-emitting pattern of appreciation at dark surrounds.Through microstructure analysis, the present invention is that the structure variation zone that laser causes is certain defect level structure, and under ultraviolet excitation, it is compound and show luminous to produce transition between the energy levels.
Advantage of the present invention: three-D pattern is write in the above-mentioned transparent medium with method of the present invention, no matter be or in the dark on the daytime, as long as will reproduce the three-D pattern of colorful light-emitting with UV-irradiation, especially when the occasion of dark, more demonstrate the bright and glittering of this colorful light-emitting pattern, have more the change characteristic.No matter at any time and to write into that three-D pattern in the transparent medium places under the room temperature be immovable,, use UV-irradiation, all can reproduce the colorful light-emitting pattern, constant forever.
Description of drawings:
Fig. 1 is embodiment 1: write the silica glass before and after the pattern and be the characteristics of luminescence under the UV-irradiation of 250nm at wavelength with femtosecond laser beam.
Among the figure 1-for not writing pattern but through the silica glass of uviolizing,
2-be to have write pattern but the silica glass of non-irradiated with ultraviolet radiation,
3-be the silica glass demonstration that writes behind the pattern and with wavelength the UV-irradiation that is 250nm
The green emitting pattern that goes out.
Fig. 2 is embodiment 1: the silica glass that writes pattern with femtosecond laser beam is the luminescent spectrum under the ultraviolet excitation of 250nm at wavelength.
Embodiment
Only lift several specific embodiments below the present invention is described, but should not limit the present invention with this.
Embodiment 1:
With above-mentioned method of the present invention and concrete steps:
Select pulse width 150fs (fs=1 * 10 for use
-15Second, as follows), the femtosecond laser of wavelength 800nm, pulse-repetition 1KHZ, mean power 100mw with 10 times lens focus to the silica glass inside for preparing with CVD (Chemical Vapor Deposition) method (CVD).In silica glass, press setting pattern trace motion scan by the computer control three-dimensional platform, finish writing of pattern.Fig. 1 is to be under the uviolizing of 250nm at wavelength, the luminous situation of above-mentioned silica glass.Can clearly be seen that, do not write pattern but through irradiation 1 and write pattern but not by 2 of ultraviolet light irradiation, do not observe any luminously, and write pattern again by 3 behind the ultraviolet light irradiation, observed clear and legible green emitting.Fig. 2 is that laser writes the luminescent spectrum that the above-mentioned silica glass of pattern produces when the 250nm uviolizing.Observed green emitting mainly is near luminous composite effect 470nm and the 540nm.Luminous maintenance at room temperature under the uviolizing is forever constant.
Embodiment 2:
With aforesaid method of the present invention and concrete steps:
The femtosecond laser beam of selecting pulse width 100fs, wavelength 400nm, pulse-repetition 200KHZ, mean power 500mw for use with 20 times lens focus to choosing chemical constitution molecule per-cent (mol%) is: 0.1SmF
3, 14.9YF
3, 10.0MgF
2, 20.0CaF
2, 10.0SrF
2, 10.0BaF
2, 35.0AlF
3Glass inside, write a solid pattern by the method for embodiment 1.Under the 250nm uviolizing, write the generation of pattern place and be different from the emitting red light that does not write the zone.Luminous maintenance at room temperature under the uviolizing is forever constant.
Embodiment 3:
With aforesaid method of the present invention and concrete steps:
The femtosecond laser beam of selecting pulse width 50fs, wavelength 1550nm, pulse-repetition 10Hz, mean power 10mw for use is 0.1EuF with the lens focus of f=100mm to choosing chemical constitution molecule per-cent (mol%)
2, 14.9YF
3, 10.0MgF
2, 20.0CaF
2, 10.0SrF
2, 10.0BaF
2, 35.0AlF
3Glass inside, write a pattern by the method for embodiment 1, under the 250nm uviolizing, write pattern area and produce emitting red light and do not write the zone produce blue look luminous.Luminous maintenance at room temperature under the uviolizing is forever constant.
Embodiment 4:
With above-mentioned method of the present invention and concrete steps:
The femtosecond laser beam of selecting pulse width 120fs, wavelength 775nm, pulse-repetition 1KHZ, mean power 100mw for use with 5 times lens focus to chemical constitution weight percent (wt%) is: 7.4AgPO
3, 23.1KPO
3, 23.2Ba (PO
3)
2, 46.3Al (PO
3)
3Glass inside, write a solid pattern by the method for embodiment 1, under the 250nm uviolizing, the hidden pattern that writes is rendered as orange.Luminous maintenance at room temperature under the uviolizing is forever constant.
Claims (1)
1. the preparation method of a luminous 3 D color pattern reproduced under ultraviolet stimulation, be to utilize laser that three-D pattern is write transparent medium inside, it is characterized in that it being to utilize femtosecond pulse to induce the inner defect level structure that produces of transparent medium to constitute three-D pattern, use ultraviolet excitation, show the three-dimensional colour luminous pattern, concrete step is:
＜1〉choosing transparent medium is to be doped with active media rare earth elements europium or samarium or erbium; Perhaps be doped with transition metal iron or manganese or chromium; Perhaps being doped with the glass of heavy metal element gold or silver or choosing transparent medium is the silica glass that CVD (Chemical Vapor Deposition) method is made;
＜2〉selecting pulse width for use is the femtosecond pulse bundle of femtosecond magnitude, and its energy density is more than or equal to the defective threshold value of above-mentioned transparent medium;
＜3〉the femtosecond pulse beam focusing point that computerizeds control above-mentioned carries out motion scan according to the pattern trace of setting in above-mentioned transparent medium inside, finishes writing of pattern;
＜4〉with the above-mentioned transparent medium of UV-irradiation, display color luminous pattern with pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01105221XA CN1144766C (en) | 2001-01-16 | 2001-01-16 | Preparation method for reproducing three-dimensional colorful luminous pattern under ultraviolet excitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01105221XA CN1144766C (en) | 2001-01-16 | 2001-01-16 | Preparation method for reproducing three-dimensional colorful luminous pattern under ultraviolet excitation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1304841A CN1304841A (en) | 2001-07-25 |
| CN1144766C true CN1144766C (en) | 2004-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB01105221XA Expired - Fee Related CN1144766C (en) | 2001-01-16 | 2001-01-16 | Preparation method for reproducing three-dimensional colorful luminous pattern under ultraviolet excitation |
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| Country | Link |
|---|---|
| CN (1) | CN1144766C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351406B (en) * | 2011-07-12 | 2013-06-12 | 中国科学院上海光学精密机械研究所 | Method for directly writing micro mechanical parts inside glass by femto-second laser |
| CN105817758B (en) * | 2016-05-17 | 2017-12-22 | 中国科学技术大学 | A kind of femtosecond laser processes method, system of processing and the acquisition system of colorful schemochrome |
| CN111805101A (en) * | 2019-04-11 | 2020-10-23 | 中国科学院上海光学精密机械研究所 | Method for preparing luminous anti-counterfeiting pattern in hydroxyl-containing glass |
| CN110335532A (en) * | 2019-05-30 | 2019-10-15 | 南京萃智激光应用技术研究院有限公司 | A method of it is anti-fake using long phosphorescence |
-
2001
- 2001-01-16 CN CNB01105221XA patent/CN1144766C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1304841A (en) | 2001-07-25 |
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| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
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Granted publication date: 20040407 Termination date: 20110116 |