SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Kavokin A) "

Sökning: WFRF:(Kavokin A)

  • Resultat 1-9 av 9
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  •  
2.
  • Choubina, Tatiana, 1950-, et al. (författare)
  • The slow light in GaN
  • 2008
  • Ingår i: ICPS2008,2008. ; , s. 647-
  • Konferensbidrag (refereegranskat)
  •  
3.
  • Shubina, Tatiana, et al. (författare)
  • Resonant light delay in GaN with ballistic and diffusive propagation
  • 2008
  • Ingår i: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 100:8
  • Tidskriftsartikel (refereegranskat)abstract
    • We report on a strong delay in light propagation through bulk GaN, detected by time-of-flight spectroscopy. The delay increases resonantly as the photon energy approaches the energy of a neutral-donor bound exciton (BX), resulting in a velocity of light as low as 2100 km/s. In the close vicinity of the BX resonance, the transmitted light contains both ballistic and diffusive components. This phenomenon is quantitatively explained in terms of optical dispersion in a medium where resonant light scattering by the BX resonance takes place in addition to the polariton propagation.
  •  
4.
  •  
5.
  •  
6.
  •  
7.
  •  
8.
  • Shubina, Tatiana, et al. (författare)
  • Optical properties of InN with stoichoimetry violation and indium clustering
  • 2005
  • Ingår i: Physica Status Solidi (a) applications and materials science. - : Wiley. - 1862-6300 .- 1862-6319. ; 202:3, s. 377-382
  • Tidskriftsartikel (refereegranskat)abstract
    • We demonstrate that nonstoichiometry is one of the main reason of strong deviation of the InN optical gap in the 0.7-2 eV range, with N/In < 1 and N/In > 1 corresponding to the lower and higher energies, respectively. The phenomenon is discussed in terms of atomic orbital energies, which are strongly different for indium and nitrogen, therefore both excess atom incorporation and elimination could change the optical gap. We estimate such trends using the approximation of the empirical nearest-neighbor tight binding theory. It is also demonstrated that resonant absorption in In-enriched regions is an additional factor lowering an effective absorption edge.
  •  
9.
  • Shubina, Tatiana, et al. (författare)
  • Narrow-line excitonic photoluminescence in GaN/AlxGa1-xN quantum well structures with inversion domains
  • 2003
  • Ingår i: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 67:24, s. 241306-
  • Tidskriftsartikel (refereegranskat)abstract
    • Microphotoluminescence studies reveal strong and narrow lines of similar to1-meV minimal width in GaN/AlxGa1-xN quantum well (QW) structures having inversion domains (IDs). These narrow lines coexist in the spectra with broad (10-15 meV) peaks. The features of both kinds are characteristic for intersections of the IDs with QWs, which provide either three- or one-dimensional carrier confinement, depending on both the ID diameter and well width.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-9 av 9

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy