1.5-mu m intraband transitions in PbSe quantum dots
2003
Abstract
Intraband transitions around 1.5 mum are studied in PbSe quantum dots at room temperature. Femtosecond pump-probe measurements reveal induced absorption by photoexcited carriers up to higher energy levels and its relaxation. A dominant decay component has a decay time of 10-40 ps, which is determined by the relaxation of carriers at the lowest absorption peak. The induced absorption is observed in a broad spectral range between 0.77 and 2.5 eV.
Details
Title
1.5-mu m intraband transitions in PbSe quantum dots
Author(s)
Okuno, T. ; Ikezawa, M. ; Masumoto, Y. ; Hayes, G. R. ; Deveaud, B. ; Lipovskii, A. A.
Published in
Japanese Journal of Applied Physics Part 2 : Letters
Volume
42
Issue
2A
Pages
L123-L125
Date
2003
ISSN
0021-4922
Keywords
Note
Univ Tsukuba, Inst Phys, Tsukuba, Ibaraki 3058571, Japan. Swiss Fed Inst Technol, Inst Quantum Elect & Photon, CH-1015 Lausanne, Switzerland. St Petersburg State Tech Univ, St Petersburg 195251, Russia. Okuno, T, Univ Tsukuba, Inst Phys, Tsukuba, Ibaraki 3058571, Japan. ISI Document Delivery No.: 648QC Times Cited: 0 Cited Reference Count: 17 Cited References: AKIMOTO R, 2001, APPL PHYS LETT, V78, P580 ANDREEV AD, 2000, J APPL PHYS, V88, P750 CHEPIC DI, 1990, J LUMIN, V47, P113 FAIST J, 1996, PHYS REV LETT, V76, P411 GMACHL C, 2000, APPL PHYS LETT, V77, P3722 GUYOTSIONNEST P, 1998, APPL PHYS LETT, V72, P686 IIZUKA N, 2000, APPL PHYS LETT, V77, P648 IKEZAWA M, 2001, PHYS REV B, V64 KLIMOV VI, 1999, PHYS REV B, V60, P2177 LIPOVSKII A, 1997, APPL PHYS LETT, V71, P3406 LIPOVSKII AA, 1997, ELECTRON LETT, V33, P101 LIU HC, 2001, APPL PHYS LETT, V78, P79 MALYAREVICH AM, 2001, APPL PHYS LETT, V78, P572 MIMURA Y, 1995, J LUMIN, V66, P401 NEOGI A, 2000, ELECTRON LETT, V36, P1972 OKUNO T, 2000, APPL PHYS LETT, V77, P504 SHUM K, 1992, PHYS REV LETT, V68, P3904
Other identifier(s)
DAR: 3260
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Laboratories
LOEQ
Record Appears in
Scientific production and competences > SB - School of Basic Sciences > SB Archives > LOEQ - Laboratory of Quantum Optoelectronics
Peer-reviewed publications
Work produced at EPFL
Journal Articles
Published
Peer-reviewed publications
Work produced at EPFL
Journal Articles
Published
Record creation date
2007-08-31