The dependence of the lasing threshold in ZnO nanorods on their length

Journal Article · Wed Sep 15 04:00:00 EDT 2010 · Semiconductors

DOI:https://doi.org/10.1134/S1063782610090198· OSTI ID:21562218

Emelchenko, G A ^[1]; Red'kin, A N; Volkov, W T; Yakimov, E E ^[2]; Visimberga, G ^[3]

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1. Russian Academy of Sciences, Institute of Solid State Physics (Russian Federation)
2. Russian Academy of Sciences, Institute of Microelectronic Technology and High Purity Materials (Russian Federation)
3. University College Cork, Tyndall National Institute (Ireland)

The effect of the length of ZnO nanorods on the mode structure and thresholds of stimulated and laser luminescence in the ultraviolet spectral region is studied. It is shown that nanorods with a metal mirror at the end face exhibit the minimum optical excitation power threshold in the case of long nanoresonators. Single-mode lasing is observed in short ZnO nanorods. Variations in the lasing thresholds are attributed to differences in the length of the amplifying medium and in the local densities of photon states in regularly shaped nanocrystals.

• OSTI ID: 21562218
• Journal Information: Semiconductors, Journal Name: Semiconductors Journal Issue: 9 Vol. 44; ISSN SMICES; ISSN 1063-7826
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BOSONS
CHALCOGENIDES
DENSITY
DIMENSIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ELEMENTS
EMISSION
ENERGY-LEVEL TRANSITIONS
EXCITATION
LASERS
LENGTH
LUMINESCENCE
MASSLESS PARTICLES
METALS
NANOSTRUCTURES
OXIDES
OXYGEN COMPOUNDS
PHOTON EMISSION
PHOTONS
PHYSICAL PROPERTIES
RADIATIONS
ULTRAVIOLET RADIATION
VARIATIONS
ZINC COMPOUNDS
ZINC OXIDES