Abstract

The optical properties of globular Sn films on Al2O3 substrates are analyzed. These films are composed of Sn particles with sizes of the order of the wavelength of visible light, and are of interest because of their solar-selective properties. The experimental data show interference-film properties at long wavelengths, and a large diffracted component at short wavelengths superimposed on a Lambertian angular distribution. The calculated properties of finite-conductivity wire gratings in general agree well with the observed film properties; however, at short wavelengths a scalar diffraction model describes the angular distribution of the transmitted diffracted light. In this model the globular film appears to have film-thickness variations, and a coherence length of approximately two globule diameters. With an empirical “shadowing” term removed from the experimental data, this scalar model works well even at relatively long wavelengths (λ/4 ≤ globule radius).

© 1978 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Solar-selective globular metal films

Chris M. Horwitz
J. Opt. Soc. Am. 68(8) 1032-1038 (1978)

Optical properties of aggregated noble metal films*

V. V. Truong and G. D. Scott
J. Opt. Soc. Am. 67(4) 502-510 (1977)

Optical characteristics of silicon nanowires grown from tin catalyst layers on silicon coated glass

Jeremy Ball, Anthony Centeno, Budhika G. Mendis, H. S. Reehal, and Neil Alford
Opt. Express 20(18) 20266-20275 (2012)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (15)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (8)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription