Diode lasers based on quantum dots

Author(s):  
M. Grundmann ◽  
F. Heinrichsdorff ◽  
N. N. Ledentsov ◽  
D. Bimberg ◽  
Zh. I. Alferov
Keyword(s):  



Author(s):  
Н.Ю. Гордеев ◽  
А.С. Паюсов ◽  
И.С. Мухин ◽  
А.А. Серин ◽  
М.М. Кулагина ◽  
...  

AbstractA post-growth technique aimed at spatial modification of facet reflectance of edge-emitting diode lasers has been proposed. It is based on the deposition of an anti-reflection coating and subsequent precise etching with a focused ion beam. The technique allowed suppressing of high-order lateral modes in 10 μm stripe lasers based on ten layers of InAs/InGaAs quantum dots.



Author(s):  
Kallista Sears ◽  
Hark Tan ◽  
Manuela Buda ◽  
Jenny Wong-Leung ◽  
Chennupati Jagadish
Keyword(s):  


1998 ◽  
Vol 318 (1-2) ◽  
pp. 83-87 ◽  
Author(s):  
M. Grundmann ◽  
N.N. Ledentsov ◽  
N. Kirstaedter ◽  
F. Heinrichsdorff ◽  
A. Krost ◽  
...  


1998 ◽  
Vol 32 (12) ◽  
pp. 1323-1327 ◽  
Author(s):  
V. P. Evtikhiev ◽  
I. V. Kudryashov ◽  
E. Yu. Kotel’nikov ◽  
V. E. Tokranov ◽  
A. N. Titkov ◽  
...  


2000 ◽  
Vol 15 (11) ◽  
pp. 1061-1064 ◽  
Author(s):  
S S Mikhrin ◽  
A E Zhukov ◽  
A R Kovsh ◽  
N A Maleev ◽  
V M Ustinov ◽  
...  
Keyword(s):  


Author(s):  
M.J. Kim ◽  
L.C. Liu ◽  
S.H. Risbud ◽  
R.W. Carpenter

When the size of a semiconductor is reduced by an appropriate materials processing technique to a dimension less than about twice the radius of an exciton in the bulk crystal, the band like structure of the semiconductor gives way to discrete molecular orbital electronic states. Clusters of semiconductors in a size regime lower than 2R {where R is the exciton Bohr radius; e.g. 3 nm for CdS and 7.3 nm for CdTe) are called Quantum Dots (QD) because they confine optically excited electron- hole pairs (excitons) in all three spatial dimensions. Structures based on QD are of great interest because of fast response times and non-linearity in optical switching applications.In this paper we report the first HREM analysis of the size and structure of CdTe and CdS QD formed by precipitation from a modified borosilicate glass matrix. The glass melts were quenched by pouring on brass plates, and then annealed to relieve internal stresses. QD precipitate particles were formed during subsequent "striking" heat treatments above the glass crystallization temperature, which was determined by differential thermal analysis.







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