高斯光束通过颗粒系统的衰减特征

doi:10.12066/j.issn.1007-2861.1821

Abstract

Abstract:

Vacuum deposition is an essential coating process to form organic light-emitting diode (OLED) film luminescent layers. Vapor of organic polymers is treated as a spherical particle systems (granular gas). A laser beam is proposed to improve their utilization rate when casting organic polymers. The Lorenz-Mie theory is used to investigate interactions between the Gaussian beam light and granular gas. The energy is found to decay exponentially, which is affected by many factors, e.g., beam waist radius, particle size parameters or refractive index. A formula of decay law is derived and analyzed to well recover the simulated data, and is consistent with the known behaviors and relations physically.

Key words: generalized Lorenz-Mie theory, extinction property, thermal evaporation in vacuum, multiple particle system, granular gas

CLC Number:

O351

WANG Han, ZHOU Zhewei, ZHANG Jinsong, ZHANG Jianhua, WANG Zhiliang. Attenuation characteristics of Gaussian beams passing through a granular system[J]. Journal of Shanghai University（Natural Science Edition）, 2018, 24(3): 392-401.

Figures/Tables 7

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Table 1

Table 2

Fig. 5

References 31

[1]	Chiang C K, Fincher C R, Park Y W, et al. Electrical conductivity in doped polyacetylene[J]. Physical Review Letters, 1977, 39(17): 1098-1101.
[2]	Pope M, Kallmann H P, Magnante P. Electroluminescence in organic crystals[J]. Chemical Physics, 1963,38(8):2042-2043.
[3]	Vincett P S, Barlow W A, Hann R A, et al. Electrical conduction and low voltage blue electroluminescence in vacuum-deposited organic films[J]. Thin Solid Films, 1982,94(2):171-183.
[4]	Chang Y L, Song Y, Wang Z, et al. Highly efficient warm white organic light-emitting diodes by triplet exciton conversion[J]. Advanced Functional Materials, 2013,23(6):705-712.
[5]	Zhong C, Duan C, Huang F, et al. Materials and devices toward fully solution processable organic light-emitting diodes[J]. Chemistry of Materials, 2010,23(3):326-340.
[6]	Ju J, Yamagata Y, Higuchi T. Thin-film fabrication method for organic light-emitting diodes using electrospray deposition[J]. Advanced Materials, 2009,21(43):4343-4347.
[7]	Kopola P, Tuomikoski M, Suhonen R, et al. Gravure printed organic light emitting diodes for lighting applications[J]. Thin Solid Films, 2009,517(19):5757-5762.
[8]	Lee E. Simulation of the thin-film thickness istribution for an OLED thermal evaporation process[J]. Vacuum, 2009,83(5):848-852.
[9]	Duan L, Hou L, Lee T W, et al. Solution processable small molecules for organic light-emitting diodes[J]. Jmaterchem, 2010,20(31):6392-6407.
[10]	Li J, Nakagawa T, Macdonald J, et al. Highly efficient organic light-emitting diode based on a hidden thermally activated delayed fluorescence channel in a heptazine derivative[J]. Advanced Materials, 2013,25(24):3319-3323. pmid: 23670919
[11]	Svoboda K, Block S M. Biological applications of optical forces[J]. Annual Review of Biophysics and Biomolecular Structure, 1994,23(1):247-285.
[12]	Ashkin A, Dziedzic J, Bjorkholm J, et al. Observation of a single-beam gradient force optical trap for dielectric particles[J]. Optics letters, 1986,11(5):288-290. pmid: 19730608
[13]	Baumgartl J, Mazilu M, Dholakia K. Optically mediated particle clearing using Airy wavepackets[J]. Nature Photonics, 2008,2(11):675-678. doi: 10.1038/nphoton.2008.201
[14]	Marago O M, Jones P H, Gucciardi P G, et al. Optical trapping and manipulation of nanostructures[J]. Nature Nanotechnology, 2013,8(11):807-819. doi: 10.1038/NNANO.2013.208
[15]	Urban A S, Carretero-Palacios S, Lutich A A, et al. Optical trapping and manipulation of plasmonic nanoparticles: fundamentals, applications, and perspectives[J]. Nanoscale, 2014,6(9):4458-4474. doi: 10.1039/c3nr06617g
[16]	Bui A A M, Stilgoe A B, Nieminen T A, et al. Calibration of nonspherical particles in optical tweezers using only position measurement[J]. Optics Letters, 2013,38(8):1244-1246.
[17]	Tsai W Y, Huang J S, Huang C B. Selective trapping or rotation of isotropic dielectric microparticles by optical near field in a plasmonic archimedes spiral[J]. Nano Letters, 2014,14(2):547-552. doi: 10.1021/nl403608a
[18]	Mie G. Beiträe zur optik trüer medien, speziell kolloidaler metallöungen[J]. Annalen der Physik, 1908,330(3):377-445.
[19]	Gouesbet G, Maheu B, Grehan G. Light scattering from a sphere arbitrarily located in a Gaussian beam, using a Bromwich formulation[J]. JOSA A, 1988,5(9):1427-1443.
[20]	Xu Y L. Electromagnetic scattering by an aggregate of spheres: asymmetry parameter[J]. Physics Letters A, 1998,249(1/2):30-36.
[21]	Mackowski D W. Analysis of radiative scattering for multiple sphere configurations[J]. Mathematical and Physical Sciences, 1991,433:599-614.
[22]	Doicu A, Wriedt T. Computation of the beam-shape coefficients in the generalized Lorenz? Mie theory by using the translational addition theorem for spherical vector wave functions[J]. Applied Optics, 1997,36(13):2971-2978. doi: 10.1364/ao.36.002971 pmid: 18253301
[23]	Gouesbet G, Grehan G, Maheu B. Computations of the $g(n)$ coefficients in the generalized Lorenz-Mie theory using three different methods[J]. Applied Optics, 1988,27(23):4874-4883. doi: 10.1364/AO.27.004874 pmid: 20539669
[24]	Gouesbet G, Grehan G, Maheu B. Localized interpretation to compute all the coefficients $g^m_n$ in the generalized Lorenz-Mie theory[J]. Journal of the Optical Society of America A, 1990,7(6):998.
[25]	黄凯, 王志亮, 周哲玮, 等. 蒸发微粒气体对光的消光特征[J]. 上海大学学报(自然科学版), 2013,19(6):598-605.
[26]	魏斌, 吴谊群, 顾冬红, 等. 偶氮金属螯合物薄膜的光学常数和吸收光谱[J]. 光学学报, 2004,24(6):739-742.
[27]	王曙. 不透明矿物晶体光学[M]. 北京: 地质出版社, 1976: 43-47.
[28]	Plass G N. Mie scattering and absorption cross sections for absorbing particles[J]. Applied Optics, 1965,5(2):279-285. doi: 10.1364/AO.5.000279 pmid: 20048830
[29]	蔡文彬, 王乃岩, 宋东明, 等. 石墨粒径对红外消光特性的影响[J]. 红外技术, 2003,25(5):68-71.
[30]	Kihm K D, Banerjee A, Choi C K, et al. Near-wall hindered Brownian diffusion of nanoparticles examined by three-dimensional ratiometric total internal reflection fluorescence microscopy (3-D R-TIRFM)[J]. Experiments in Fluids, 2004,37(6):811-824. doi: 10.1007/s00348-004-0865-4
[31]	史飞, 郑旭, 陈荣前, 等. 全内反射测速技术(TIRV)中界面隐失波基准光强$I_0$的确定[J]. 实验流体力学, 2014,28(6):80-85.

Attenuation characteristics of Gaussian beams passing through a granular system

RichHTML

PDF

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 7

References 31

Related Articles 1

Recommended Articles

Metrics

Comments