Linear optical properties of Ge nanocrystals in silica

Dowd, A; Elliman, RG; Luther-Davies, B

Linear optical properties of Ge nanocrystals in silica

Dowd, A

Elliman, RG Luther-Davies, B

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Publication Type:: Journal Article
Citation:: Applied Physics Letters, 2001, 79 (15), pp. 2327 - 2329
Issue Date:: 2001-10-08

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Field	Value	Language
dc.contributor.author	Dowd, A https://orcid.org/0000-0002-0500-3599	en_US
dc.contributor.author	Elliman, RG	en_US
dc.contributor.author	Luther-Davies, B	en_US
dc.date.issued	2001-10-08	en_US
dc.identifier.citation	Applied Physics Letters, 2001, 79 (15), pp. 2327 - 2329	en_US
dc.identifier.issn	0003-6951	en_US
dc.identifier.uri	http://hdl.handle.net/10453/8345
dc.description.abstract	The absorption and extinction spectra of Ge nanocrystals in silica formed by ion implantation are studied using photothermal deflection and transmission spectroscopies. It is found that scattering makes a significant contribution to the extinction spectrum, damping the spectral features and resulting in a Rayleigh scattering-like ω4 dependence. In contrast, the spectra measured by photothermal deflection clearly show features such as the E1/E1 + Δ1 transitions. The Tauc gap is extracted to be ∼0.7 ± 0.1 eV. © 2001 American Institute of Physics. [DOI: 10.1063/1.1409591].	en_US
dc.relation.ispartof	Applied Physics Letters	en_US
dc.relation.isbasedon	10.1063/1.1409591	en_US
dc.subject.classification	Applied Physics	en_US
dc.title	Linear optical properties of Ge nanocrystals in silica	en_US
dc.type	Journal Article
utslib.citation.volume	15	en_US
utslib.citation.volume	79	en_US
utslib.for	0204 Condensed Matter Physics	en_US
utslib.for	0205 Optical Physics	en_US
utslib.for	02 Physical Sciences	en_US
utslib.for	09 Engineering	en_US
utslib.for	10 Technology	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	closed_access
pubs.issue	15	en_US
pubs.publication-status	Published	en_US
pubs.volume	79	en_US

Abstract:

The absorption and extinction spectra of Ge nanocrystals in silica formed by ion implantation are studied using photothermal deflection and transmission spectroscopies. It is found that scattering makes a significant contribution to the extinction spectrum, damping the spectral features and resulting in a Rayleigh scattering-like ω4 dependence. In contrast, the spectra measured by photothermal deflection clearly show features such as the E1/E1 + Δ1 transitions. The Tauc gap is extracted to be ∼0.7 ± 0.1 eV. © 2001 American Institute of Physics. [DOI: 10.1063/1.1409591].

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http://hdl.handle.net/10453/8345