Change search
ReferencesLink to record
Permanent link

Direct link
Partial spatial coherence and polarization properties of surface plasmon fields
KTH, School of Information and Communication Technology (ICT), Microelectronics and Applied Physics, MAP.
2011 (English)In: Proc SPIE Int Soc Opt Eng, 2011Conference paper (Refereed)
Abstract [en]

We analyze theoretically the (spectral) spatial coherence and polarization properties in fluctuating surface plasmon fields generated at a lossy, thin metal film surrounded on both sides by air. Using rigorous electromagnetic interactions at the interfaces and the theory of optical coherence in 3D fields, we show that new coherence and polarization effects may occur in such plasmon fields. In particular, coherence lengths extending over several thousands of wavelengths, or coherence lengths significantly shorter than the wavelength of light in vacuum, can be found at certain frequencies. Using a recent 3D formulation, we also examine the degree of polarization in such random surface plasmon fields. We show that the field may be partially polarized in the immediate vicinity of the excitation of the surface plasmon modes, even though it is fully polarized farther away. In addition, we demonstrate that an increasing number of modes leads to a more polarized field above the plasmon excitation region, with the degree of polarization effectively independent of the height. 

Place, publisher, year, edition, pages
, Proceedings of SPIE - The International Society for Optical Engineering, ISSN 0277-786X ; 8011
Keyword [en]
3D polarization, electromagnetic coherence, Surface plasmon fields, Coherence lengths, Degree of polarization, Electromagnetic interactions, In-vacuum, Plasmon excitations, Plasmon field, Polarization effect, Polarization properties, Random surfaces, Spatial coherence, Surface plasmon modes, Thin metal films, Wavelength of light, Electromagnetism, Light, Plasmons, Polarization, Three dimensional, Surface properties
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-150618DOI: 10.1117/12.902478ISI: 000297585800132ScopusID: 2-s2.0-84858411571ISBN: 9780819485854OAI: diva2:744515
22nd Congress of the International Commission for Optics: Light for the Development of the World, 15 August 2011 through 19 August 2011, Puebla

QC 20140908

Available from: 2014-09-08 Created: 2014-09-08 Last updated: 2014-09-08Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Friberg, Ari T.
By organisation
Microelectronics and Applied Physics, MAP
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 7 hits
ReferencesLink to record
Permanent link

Direct link