0000099586 00000 n
0000102448 00000 n
You have requested a machine translation of selected content from our databases. Dr. Barzinjy, Dr. Dehbi, I'll read the suggested papers! Principle of ultraviolet–visible absorption. 0000004081 00000 n
How to set up DO radiation model for problem of radiation Heat flux on glass tube through which water is flowing? 0000004426 00000 n
xref
4 respectively, illustrated by the energy level diagram [33 in Fig. d�������e��Z5o����<7��. The absorption bands of a glass are closely related to its dispersion behavior. After introducing Pr 3+, absorption peaks locating at 443, 470, 482, 590, 1414, 1512, 1912 and 2251 nm wavelengths correspond to transitions from ground state 3 H 4 to excited states of 3 P 2, 1 I 6 + 3 P 1, 3 P 0, 1 D 2, 3 F 4, 3 F 3, 3 F 2 and 3 H 6 in Fig. 0000000016 00000 n
0000030781 00000 n
0000003318 00000 n
Also, certain glass types have different transmission wavelength regions. Wavelength dependence of transmittance The transmittance of an optical glass is inversely proportional to its spectral absorption. Or, on the contrary, one has \epsilon=\alpha+\tau (where \tau is the transmission coefficient). But if I change element type on SOLID185 using comand "ET,MATID,SOLID185" I don't get results because of solution errors. "The emissivity of transparent materials.". 20 15
3. I'm working on heat transfer problem , I simulate a test room and I put an electrical radiator. endstream
endobj
21 0 obj
<>
endobj
22 0 obj
<>
endobj
23 0 obj
<>/Font<>/ProcSet[/PDF/Text]/ExtGState<>>>
endobj
24 0 obj
<>
endobj
25 0 obj
<>
endobj
26 0 obj
[/ICCBased 33 0 R]
endobj
27 0 obj
<>
endobj
28 0 obj
<>
endobj
29 0 obj
<>
endobj
30 0 obj
<>stream
This absorption happens when the energy of a photon of light matches the energy needed to excite an electron within the glass to its higher energy state, and the photon is absorbed by the glass. startxref
I am modeling a Direct Absorption Collector (DAC) using the discret ordinate model available in Ansys Fluent. To access this item, please sign in to your personal account. I am trying to simulate radiation on galvanized steel shield. This is the wavelength range that can cause a sunburn, so it's true you can't get a sunburn through glass. 5. 0000109846 00000 n
xref
UV Laser Marker: 355 nm wavelength: (THG wavelength) This laser has a wavelength that is even shorter than SHG and is in the UV region. Recent studies have reported that thermal aging of insulation paper affects its moisture absorption property, which can affect moisture equilibrium in oil-paper insulation. So I use Discrete ordinate model becaus I want air medium but I don't have absorption and scattering coefficient of air. We were able to explain the ablation diameter and depth by numerical calculation considering the multiphoton ionization process and avalanche ionization process. Thank you so much. Therefore, the refractive and absorption in- 0000003240 00000 n
The dispersion is a measure of the change of the refractive index with wavelength. trailer
I have found in the manufacturer's catalog that the absorption coefficient of glass is 92%. %%EOF
0000000016 00000 n
0000000906 00000 n
Create a new folder below. When light travels through a glass, the intensity of the light is typically reduced. The ablation mechanism of the transparent material generally is considered nonlinear absorption, but it is known that the absorption coefficient depends on the wavelength. Since the operation temperature is much higher that room temperature, want to confirm the emissivity value at higher temperature. Ultrashort pulse laser processing of transparent materials insight from... Laser induced incubation in transparent materials and possible consequences for... Laser structuring of conducting films on transparent substrates for electronics... F2 laser ablation process of silica glass, Laser ablation mechanism of transparent dielectrics with picosecond laser pulses, Laser ablation process of quartz material using F2 laser, Journal of Micro-Nanolithography, MEMS, and MOEMS.