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881. Database of Optical Properties -- Level: subsubpage
... In the following tables we present the normalized cross-sections tabulated for prolate and oblate spheroids having the refractive index m = 1.3, 2.5, 1.7 +0.7i, 2.5 +1.5i, 3.0 +4.0i; the semiaxis ratio a/b = 1.1, 2, 4, 10; the incidence angle alpha = 0 and 90 (TE and TM modes ), and different diffraction parameter x V =2 pi r V /lambda, where r V is the radius of an equal volume sphere and lambda the wavelength of incident radiation. ... alpha = 0 . ... 0.1 . ... C ext /pi r V (alpha=0) . ...
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Ссылки http://www.astro.spbu.ru/DOP/7-BENC/OURS/spherds.html -- 35.8 Кб -- 19.11.2010
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882. Database of Optical Properties -- Level: subpage
. The page is under construction. Our tables will include various light scattering characteristics (we start with some cross-sections and will continue with others) carefully computed by different codes/methods (under construction). Our list will include references to papers were similar benchmarks were presented (under construction). To the top . Created by V.I. Last modified: 09/03/03, V.I.
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Ссылки http://www.astro.spbu.ru/DOP/7-BENC/index.html -- 2.2 Кб -- 19.11.2010
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883. Database of Optical Properties -- Level: subpage
... One of the oldes collection of benchmarks in light scattering looks to be the book of N.C.Wickramasinghe (1973, Light Scattering Functions for Small Particles with Applications in Astronomy, Chapman Hall, London). ... Voshchinnikov Farafonov (1985) Opt. Spectrosc. ... Voshchinnikov Farafonov (1986) Opt. ... Mishchenko (1991) J. Opt. ... 1992) J. Quant. ... 1996) J. Quant. ... Mishchenko et al. ... Opt. ... Mishchenko Mackowski (1996) J. Quant. ... Mishchenko (2000) Appl. ... 2000) J. Quant. ...
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Ссылки http://www.astro.spbu.ru/DOP/7-BENC/others.html -- 3.3 Кб -- 19.11.2010
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884. http://www.astro.spbu.ru/DOP/6-SOFT/SPHEROID/1-SPH_old/QPR/rhom.r2
SPHEROID: Oblate Refractive index: 1.7000 0.0000 I Rv= 0.080 mkm Lambda= 0.500 mkm Xv= 1.000 a/b = 2.000 Ksi0= 0.577 ============================================================================== C1= 1.091 C2= 1.855 0.000 Cksi = 1.260 Nmax= 8 Nmxe= 28 ------------------------------------------------------------------------------ a/b x_v 2*pi*a/l alpha Cpr1 /G Cpr2 /G Cpr2 / Cpr1 ...
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Ссылки http://www.astro.spbu.ru/DOP/6-SOFT/SPHEROID/1-SPH_old/QPR/rhom.r2 -- 6.9 Кб -- 19.11.2010
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885. http://www.astro.spbu.ru/DOP/6-SOFT/SPHEROID/1-SPH_old/QL/rhom.r2
SPHEROID: Prolate Refractive index: 1.5000 0.0000 I Rv= 0.551 mkm Lambda= 0.550 mkm Xv= 6.300 a/b = 2.000 Ksi0= 1.155 ============================================================================== C1= 8.66 C2= 12.99 0.00 Cksi = 10.00 Nmax= 28 Nmxe= 32 ------------------------------------------------------------------------------ alpha m Cext /(Pi/Rv**2) Csca /(Pi/Rv**2) ...
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Ссылки http://www.astro.spbu.ru/DOP/6-SOFT/SPHEROID/1-SPH_old/QL/rhom.r2 -- 3.5 Кб -- 19.11.2010
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886. http://www.astro.spbu.ru/DOP/6-SOFT/SPHEROID/1-SPH_old/Q/hom.res
SPHEROID: Oblate Refractive index: 1.5000 0.0000 I Rv= 0.088 mkm Lambda= 0.550 mkm Xv= 1.000 a/b = 1.100 Ksi0= 2.182 ============================================================================== C1= 0.430 C2= 0.645 0.000 Cksi = 1.032 Nmax= 8 Nmxe= 8 ------------------------------------------------------------------------------ alpha m Cext /(Pi*Rv**2) Csca /(Pi*Rv**2) ...
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Ссылки http://www.astro.spbu.ru/DOP/6-SOFT/SPHEROID/1-SPH_old/Q/hom.res -- 7.6 Кб -- 19.11.2010
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887. http://www.astro.spbu.ru/DOP/6-SOFT/SPHEROID/1-SPH_old/readme
Directory contains Programs Q to calculate factors, albedo, etc. I to calculate factors and scattering matrix; QL to calculate factors, albedo, etc. (for very elongated spheroids) QPR to calculate the radiation pressure factors and g_par, g_per (for spheroids)
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Ссылки http://www.astro.spbu.ru/DOP/6-SOFT/SPHEROID/1-SPH_old/readme -- 1.3 Кб -- 19.11.2010
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888. Database of Optical Properties -- Level: subpage
The following page provides access to several SVM codes developed by us. ... Several our codes realizing some other exact and approximate methods are also available. The codes are provided by rather small (sorry) comments and test run results. ... Another page contains links to other collections of light scattering software (under construction). Our overview of the ranges of applicability of different codes is under preparation. ... Created by V.I. Last modified: 10/05/03, V.I. ...
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Ссылки http://www.astro.spbu.ru/DOP/6-SOFT/ -- 2.8 Кб -- 19.11.2010
[ Сохраненная копия ] Ссылки http://www.astro.spbu.ru/DOP/6-SOFT/index.html -- 2.8 Кб -- 19.11.2010
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[ Сохраненная копия ] Ссылки http://www.astro.spbu.ru/DOP/6-SOFT/index.html -- 2.8 Кб -- 19.11.2010
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889. http://www.astro.spbu.ru/DOP/6-SOFT/CYLINDER/N-CYL/readme
For multi-layered cylinders, see the paper of Kleiman et al. in JQSRT 63, 217, 1999.
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Ссылки http://www.astro.spbu.ru/DOP/6-SOFT/CYLINDER/N-CYL/readme -- 1.1 Кб -- 19.11.2010
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890. http://www.astro.spbu.ru/DOP/6-SOFT/SPHERE/1-MIE/nvvmie.out
SPHERES: homogeneous THEORY: exact m = 1.6000000000 0.0000000000 *i ........................................................................................... x Qext Qsca Qabs Qbk Qpr albedo g ------------------------------------------------------------------------------------------- 10000.00 2.005495 2.005495 0.000000 174.370982 0.39956 1.00000 0.80077 20000.00 2.003183 2.003183 0.000000 456.666250 0.40056 1.00000 0.80004 30000.00 ...
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Ссылки http://www.astro.spbu.ru/DOP/6-SOFT/SPHERE/1-MIE/nvvmie.out -- 1.9 Кб -- 19.11.2010
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891. http://www.astro.spbu.ru/DOP/6-SOFT/SPHERE/1-MIE/readme
Comments at the top of each program provide information necessary to use them. If problems, contact nvv@astro.spbu.ru
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Ссылки http://www.astro.spbu.ru/DOP/6-SOFT/SPHERE/1-MIE/readme -- 1.1 Кб -- 19.11.2010
[ Сохраненная копия ] Ссылки http://www.astro.spbu.ru/DOP/6-SOFT/SPHERE/2-MIE/readme -- 1.1 Кб -- 19.11.2010
[ Сохраненная копия ] Ссылки http://www.astro.spbu.ru/DOP/6-SOFT/SPHERE/N-MIE/readme -- 1.1 Кб -- 19.11.2010
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[ Сохраненная копия ] Ссылки http://www.astro.spbu.ru/DOP/6-SOFT/SPHERE/2-MIE/readme -- 1.1 Кб -- 19.11.2010
[ Сохраненная копия ] Ссылки http://www.astro.spbu.ru/DOP/6-SOFT/SPHERE/N-MIE/readme -- 1.1 Кб -- 19.11.2010
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892. http://www.astro.spbu.ru/DOP/6-SOFT/SPHERE/2-MIE/2-mieq.out
SPHERES: 2-layers / THEORY: exact m1= 1.7000 0.0000 *i m2= 1.3000 0.0000 *i Vcore/Vtotal= 0.100 ........................................................................................... x Qext Qsca Qabs Qbk Qpr albedo g ------------------------------------------------------------------------------------------- 1000.00 2.018360 2.018360 0.000000 3.827560 0.31252 1.00000 0.84516 6000.00 2.013915 2.013915 0.000000 15.880604 0.31012 ...
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Ссылки http://www.astro.spbu.ru/DOP/6-SOFT/SPHERE/2-MIE/2-mieq.out -- 3.8 Кб -- 19.11.2010
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893. http://www.astro.spbu.ru/DOP/6-SOFT/SPHERE/N-MIE/n-mieq.out
SPHERES: n-layers / THEORY: exact Number of layers= 15 Refractive indices: i= 1, m_i = 1.9700 - 0.2300 *i i= 2, m_i = 1.0000 0.0000 *i i= 3, m_i = 1.6800 - 0.0300 *i i= 4, m_i = 1.9700 - 0.2300 *i i= 5, m_i = 1.0000 0.0000 *i i= 6, m_i = 1.6800 - 0.0300 *i i= 7, m_i = 1.9700 - 0.2300 *i i= 8, m_i = 1.0000 0.0000 *i i= 9, m_i = 1.6800 - 0.0300 *i i=10, ...
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Ссылки http://www.astro.spbu.ru/DOP/6-SOFT/SPHERE/N-MIE/n-mieq.out -- 4.3 Кб -- 19.11.2010
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894. Database of Optical Properties -- Level: subpage
This page is under construction. This page will present links and brief descriptions of several light scattering code collections: . The page of Th.Wriedt gives the most full list of available light scattering codes. ... The page of the Numerical Electromagnetics Codes Library (EMLib) contains ... (dead link?) ... Missouri-Rolla (EMCLAB) contains links to several numerical codes based on different approaches to solution of the 2D/3D light scattering problems. ...
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Ссылки http://www.astro.spbu.ru/DOP/6-SOFT/others.html -- 3.6 Кб -- 19.11.2010
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895. Conclusions
Next: Acknowledgements Up: A Database of Optical Previous: Hydrogenated amorphous carbon . We have presented recent developments in the Jena-Petersburg Database of Optical Constants (JPDOC) and have demonstrated examples for application of the optical constants contained for purposes of comparison with astronomical spectroscopic observations. ... The authors will highly acknowledge any contribution to the database such as references, data files and links to be included in the database. ...
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Ссылки http://www.astro.spbu.ru/DOP/5-OPTC/JPDOC2/node11.html -- 3.5 Кб -- 19.11.2010
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896. Acknowledgements
. Next: Bibliography Up: Conclusions Previous: Conclusions . We are grateful to all the people who sent us their comments and remarks on the JPDOC. We also thank the German Research Foundation for supporting our experimental work by several grants to the Research Group ``Laboratory Astrophysics''. The development of the WWW database was supported by the Volkswagen Foundation and the INTAS grant 99/652. V.I. acknowledges the support by the RFBR grant 00-15-96607. root 2003-03-06
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Ссылки http://www.astro.spbu.ru/DOP/5-OPTC/JPDOC2/node12.html -- 3.2 Кб -- 19.11.2010
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897. Future plans
Next: Database of Optical Properties Up: Electronic database Previous: Current state . ... Collaboration is planned with the Physical Institute of the St.Petersburg University, Ioffe Physical Institute and the St.Petersburg Institute of Precise Mechanics and Optics. ... Some changes of the general design of the database are planned too, but main efforts will be directed at extension of the JPDOC. ...
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Ссылки http://www.astro.spbu.ru/DOP/5-OPTC/JPDOC2/node4.html -- 3.6 Кб -- 19.11.2010
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898. Database of Optical Properties
Next: Examples of data contained Up: Electronic database Previous: Future plans . In astrophysics, the optical constants mainly are used to calculate the optical properties of scatterers, i.e. cross-sections, scattering matrix, etc. ... Optical properties derived from such models have been discussed in some books (see, e.g., [ 2 , 3 ]) and in principle can be calculated by using various light-scattering tools which are freely available via the internet [ 4 ]. ...
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Ссылки http://www.astro.spbu.ru/DOP/5-OPTC/JPDOC2/node5.html -- 6.0 Кб -- 19.11.2010
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899. Examples of data contained in the JPDOC
Next: Silicate minerals Up: A Database of Optical Previous: Database of Optical Properties . ... If necessary, data have been determined for the different crystallographic axes. ... In the following we give some examples of the data and their possible applications. Table: Summary of data measured in the Jena laboratory, which are currently available from the JPDOC. compound . ... amorph. ... Next: Silicate minerals Up: A Database of Optical Previous: Database of Optical Properties root 2003-03-06 ...
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Ссылки http://www.astro.spbu.ru/DOP/5-OPTC/JPDOC2/node6.html -- 10.1 Кб -- 19.11.2010
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900. Silicate minerals
Next: Amorphous magnesium silicate Up: Examples of data contained Previous: Examples of data contained . ... We have used the infrared optical constants of forsterite contained in the database for calculating the absorption cross sections of spherical and non-spherical particles in the Rayleigh limit (see Fig. The spectra are obtained by averaging the cross sections calculated for the three different crystallographic directions. ...
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Ссылки http://www.astro.spbu.ru/DOP/5-OPTC/JPDOC2/node7.html -- 6.3 Кб -- 19.11.2010
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