Influences of resonantly accumulated free electrons on optical absorption and emission in biased double-barrier resonant tunnelling structures

1990 ◽  
Author(s):  
N. Sylvain Charbonneau ◽  
Jeffrey F. Young ◽  
Pawel Hawrylak ◽  
Anthony J. SpringThorpe
Keyword(s):  
Optical Absorption ◽  
Free Electrons ◽  
Double Barrier ◽  
Absorption And Emission ◽  
Resonant Tunnelling

Resonant tunnelling in AlInas/GaInAs double barrier diodes grown by MOCVD

1988 ◽  
Vol 24 (3) ◽  
pp. 187 ◽  
Author(s):  
P.D. Hodson ◽  
D.J. Robbins ◽  
R.H. Wallis ◽  
J.I. Davies ◽  
A.C. Marshall
Keyword(s):  
Double Barrier ◽  
Resonant Tunnelling

Optical absorption and emission properties of Nd3+-doped fluorophosphates glass for broadband fiber amplifier applications

2003 ◽  
Author(s):  
Ju H. Choi ◽  
Frank G. Shi ◽  
Alfred A. Margaryan ◽  
Ashot Margaryan ◽  
Wytze E. van der Veer
Keyword(s):  
Optical Absorption ◽  
Fiber Amplifier ◽  
Absorption And Emission ◽  
Emission Properties

Double-barrier resonant tunnelling diode three-state logic

1990 ◽  
Vol 26 (1) ◽  
pp. 61-62 ◽  
Author(s):  
A. Sellai ◽  
M.S. Raven ◽  
D.P. Steenson ◽  
J.M. Chamberlain ◽  
M. Henini ◽  
...  
Keyword(s):  
Double Barrier ◽  
Resonant Tunnelling ◽  
Resonant Tunnelling Diode

Optical absorption and emission spectral studies of phthalocyanine molecules in DMF

2001 ◽  
Vol 05 (05) ◽  
pp. 456-459 ◽  
Author(s):  
G. A. KUMAR ◽  
J. THOMAS ◽  
N. V. UNNIKRISHNAN ◽  
V. P. N. NAMPOORI ◽  
C. P. G. VALLABHAN
Keyword(s):  
Optical Absorption ◽  
Cross Section ◽  
Emission Cross Section ◽  
Optical Gain ◽  
Spectral Studies ◽  
Dimethyl Formamide ◽  
Free Base ◽  
Dipole Strength ◽  
Spectral Parameters ◽  
Absorption And Emission

Optical absorption and emission spectral studies of various phthalocyanine ( Pc ) molecules in dimethyl formamide (DMF) solvent are reported in this paper. Measurements have been done for free base, Eu , Fe , Mn , Sm , Cu , Zn , Nd and La Pc - s . The principal optical transitions viz B and Q are identified and some of the important spectral parameters such as molar extinction coefficient (ε), absorption cross section (σa), dipole strength (q) and oscillator strength (f) are evaluated for the prominent Q-band. The measured radiative parameters viz emission cross section (σe), fluorescence bandwidth (Δλ) and optical gain (G) show wide variation among different systems. The results obtained are compared with other solid matrices such as glass and polymer.

scholarly journals Effect of ‘Al’ concentration on spin-dependent resonant tunnelling in InAs/Ga1−y Al y As symmetrical double-barrier heterostructures

2016 ◽  
Vol 39 (6) ◽  
pp. 1435-1440 ◽  
Author(s):  
L BRUNO CHANDRASEKAR ◽  
K GNANASEKAR ◽  
M KARUNAKARAN ◽  
R CHANDRAMOHAN
Keyword(s):  
Double Barrier ◽  
Resonant Tunnelling
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