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Two-photon indirect absorption in GaSe
KTH, School of Information and Communication Technology (ICT), Microelectronics and Applied Physics, MAP.ORCID iD: 0000-0002-5260-5322
2008 (English)In: PROCEEDINGS OF THE 17TH INTERNATIONAL VACUUM CONGRESS/13TH INTERNATIONAL CONFERENCE ON SURFACE SCIENCE/INTERNATIONAL CONFERENCE ON NANOSCIENCE AND TECHNOLOGY, 2008Conference paper, Published paper (Refereed)
Abstract [en]

Two-photon absorption (TPA) in GaSe is detected in the narrow (about kT) spectral range above the indirect exciton energy for E⊥c light polarization. The appearance of TPA enhancement within narrow spectral region links to the resonant Raman scattering and anti-Stockes photoluminescence previously identified in GaSe. Extracted TPA coefficient is of the order of 10 cm/W and 5-10 times exceeds ones obtained previously for lower quanta energies.

Place, publisher, year, edition, pages
2008.
Series
Journal of Physics Conference Series, ISSN 1742-6588 ; 100
Keyword [en]
Indirect excitons, Quanta energy, Resonant Raman scattering, Spectral range, Spectral region, Two photon, Two-photon absorptions, Photons, Two photon processes, Absorption
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-154014DOI: 10.1088/1742-6596/100/4/042008ISI: 000275655200056Scopus ID: 2-s2.0-77954330151OAI: oai:DiVA.org:kth-154014DiVA: diva2:755611
Conference
17th International Vacuum Congress/13th International Conference on Surface Science/Internatinal Conference on Nanoscience and Technology, Stockholm, SWEDEN, JUL 02-06, 2007
Note

QC 20141015

Available from: 2014-10-15 Created: 2014-10-10 Last updated: 2014-10-15Bibliographically approved

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Linnros, Jan

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