Spectral and global diffuse properties of high-performance translucent polymer sheets for energy efficient lighting and skylights

Smith, GB; Jonsson, JC; Franklin, J

Spectral and global diffuse properties of high-performance translucent polymer sheets for energy efficient lighting and skylights

Smith, GB

Jonsson, JC Franklin, J

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Publication Type:: Journal Article
Citation:: Applied Optics, 2003, 42 (19), pp. 3981 - 3991
Issue Date:: 2003-01-01

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Field	Value	Language
dc.contributor.author	Smith, GB https://orcid.org/0000-0002-6985-2880	en_US
dc.contributor.author	Jonsson, JC	en_US
dc.contributor.author	Franklin, J	en_US
dc.date.issued	2003-01-01	en_US
dc.identifier.citation	Applied Optics, 2003, 42 (19), pp. 3981 - 3991	en_US
dc.identifier.issn	1559-128X	en_US
dc.identifier.uri	http://hdl.handle.net/10453/467
dc.description.abstract	A visible and near-IR spectral study is presented for a translucent smooth polymer sheet in which dopant particles are clear polymer with a refractive index close to that of the clear polymer host. Diffuse, specular, and total reflectance and transmittance and absorptance as a function of sheet thickness and dopant levels approach ideal behavior for lighting applications. A fourth optical parameter, side loss ST, is introduced to fully account for the measured data. This covers radiation that is trapped by total internal reflection (TIR) and travels sideways sufficiently far, including to the sheet’s edges, to miss detection on exit. SThas a strong spectral character, whereas total T and R spectra closely follow the spectrally flat wavelength dependence of the undoped clear sheet. Three distinct regimes are identified for the behavior with wavelength of the specular and diffuse components and are linked to rear surface TIR and side loss. © 2003 Optical Society of America.	en_US
dc.relation	http://purl.org/au-research/grants/arc/LP0219763
dc.relation.ispartof	Applied Optics	en_US
dc.relation.isbasedon	10.1364/AO.42.003981	en_US
dc.rights	© 2003 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.	en_US
dc.subject.classification	Optics	en_US
dc.title	Spectral and global diffuse properties of high-performance translucent polymer sheets for energy efficient lighting and skylights	en_US
dc.type	Journal Article
utslib.citation.volume	19	en_US
utslib.citation.volume	42	en_US
utslib.for	0205 Optical Physics	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
utslib.for	0913 Mechanical Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	open_access
pubs.issue	19	en_US
pubs.publication-status	Published	en_US
pubs.volume	42	en_US

Abstract:

A visible and near-IR spectral study is presented for a translucent smooth polymer sheet in which dopant particles are clear polymer with a refractive index close to that of the clear polymer host. Diffuse, specular, and total reflectance and transmittance and absorptance as a function of sheet thickness and dopant levels approach ideal behavior for lighting applications. A fourth optical parameter, side loss ST, is introduced to fully account for the measured data. This covers radiation that is trapped by total internal reflection (TIR) and travels sideways sufficiently far, including to the sheet’s edges, to miss detection on exit. SThas a strong spectral character, whereas total T and R spectra closely follow the spectrally flat wavelength dependence of the undoped clear sheet. Three distinct regimes are identified for the behavior with wavelength of the specular and diffuse components and are linked to rear surface TIR and side loss. © 2003 Optical Society of America.

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http://hdl.handle.net/10453/467