DOI:10.5488/CMP.14.23704 arXiv:1106.5129
Title:
Active conductivity of plane two-barrier resonance tunnel structure as operating element of quantum cascade laser or detector
Author(s):
| M.V. Tkach (Fedkovych Chernivtsi National University, 2 Kotsyubinsky Str., 58012 Chernivtsi, Ukraine) , | |
| Ju.O. Seti (Fedkovych Chernivtsi National University, 2 Kotsyubinsky Str., 58012 Chernivtsi, Ukraine) , | |
| V.O. Matijek (Fedkovych Chernivtsi National University, 2 Kotsyubinsky Str., 58012 Chernivtsi, Ukraine) , | |
| O.M. Voitsekhivska (Fedkovych Chernivtsi National University, 2 Kotsyubinsky Str., 58012 Chernivtsi, Ukraine) |
Within the model of rectangular potentials and different effective masses of electrons in different elements of plane two-barrier resonance tunnel structure there is developed a theory of spectral parameters of quasi-stationary states and active conductivity for the case of mono-energetic electronic current interacting with electromagnetic field. It is shown that the two-barrier resonance tunnel structure can be utilized as a separate or active element of quantum cascade laser or detector. For the experimentally studied In0.53Ga0.47As/In0.52Al0.48As nano-system it is established that the two-barrier resonance tunnel structure, in detector and laser regimes, optimally operates (with the biggest conductivity at the smallest exciting current) at the quantum transitions between the lowest quasi-stationary states.
Key words:
resonance tunnel structure, conductivity, quantum laser, quantum detector
PACS:
73.21.Fg, 73.90.+f, 72.30.+q, 73.63.Hs
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