Direct Imaging of Room Temperature Optical Absorption with Subnanometer Spatial Resolution

Nano Letters ◽  
2010 ◽  
Vol 10 (12) ◽  
pp. 4897-4900 ◽  
Author(s):  
Gregory Scott ◽  
Sumit Ashtekar ◽  
Joseph Lyding ◽  
Martin Gruebele
Keyword(s):  
Optical Absorption ◽  
Spatial Resolution ◽  
Room Temperature ◽  
Direct Imaging ◽  
Room Temperature Optical Absorption

Room‐temperature optical absorption in undoped α‐Al2O3

1990 ◽  
Vol 67 (12) ◽  
pp. 7542-7546 ◽  
Author(s):  
M. E. Innocenzi ◽  
R. T. Swimm ◽  
M. Bass ◽  
R. H. French ◽  
A. B. Villaverde ◽  
...  
Keyword(s):  
Optical Absorption ◽  
Room Temperature ◽  
Α Al2o3 ◽  
Room Temperature Optical Absorption

Room temperature optical absorption and intrinsic photoluminescence in KZnF3

2010 ◽  
Vol 494 (4-6) ◽  
pp. 284-286 ◽  
Author(s):  
Neetu Tyagi ◽  
P. Senthil Kumar ◽  
R. Nagarajan
Keyword(s):  
Optical Absorption ◽  
Room Temperature ◽  
Room Temperature Optical Absorption

Room-temperature optical absorption in the InAs/GaAs quantum-dot superlattice under an electric field

2011 ◽  
Vol 45 (8) ◽  
pp. 1064-1069 ◽  
Author(s):  
M. M. Sobolev ◽  
I. M. Gadzhiev ◽  
I. O. Bakshaev ◽  
V. N. Nevedomskii ◽  
M. S. Buyalo ◽  
...  
Keyword(s):  
Optical Absorption ◽  
Quantum Dot ◽  
Electric Field ◽  
Room Temperature ◽  
Gaas Quantum Dot ◽  
Room Temperature Optical Absorption

Energy gap values by optical absorption in I III IV Se4 compounds

1982 ◽  
Vol 60 (8) ◽  
pp. 1096-1100 ◽  
Author(s):  
R. G. Goodchild ◽  
O. H. Hughes ◽  
S. A. Lopez-Rivera ◽  
J. C. Woolley
Keyword(s):  
Optical Absorption ◽  
Room Temperature ◽  
Energy Gap ◽  
Quaternary Compounds ◽  
Room Temperature Optical Absorption ◽  
Absorption Measurements ◽  
Gap Values

Polycrystalline samples have been prepared of 12 defect chalcopyrite quaternary compounds of the form I III IV Se4, where I is Cu or Ag, III Al, Ga or In, and IV Ge or Sn. In all cases room temperature optical absorption measurements have been made to determine values of the fundamental energy gap (Eg) and all gaps shown to be direct. For the cases of AgGaSnSe4 and AgGaGeSe4, values of Eg have been determined as a function of temperature from helium to room and the data fitted to a Manoogian–Leclerc equation. The energy gap values of the quaternary compounds (EgT) have been compared with those of the corresponding ternary chalcopyrite compounds (EgT) and a relation between the values of EgQ−EgT and EgT shown.

Observation of room temperature optical absorption in InP/GaAs type-II ultrathin quantum wells and quantum dots

2014 ◽  
Vol 115 (22) ◽  
pp. 223505 ◽  
Author(s):  
S. D. Singh ◽  
S. Porwal ◽  
Puspen Mondal ◽  
A. K. Srivastava ◽  
C. Mukherjee ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Absorption ◽  
Quantum Wells ◽  
Room Temperature ◽  
Type Ii ◽  
Room Temperature Optical Absorption

Testing of colourless natural diamonds by room temperature optical absorption

1990 ◽  
Vol 22 (3) ◽  
pp. 142-145
Author(s):  
G. Lifante ◽  
F. Jaque ◽  
M. A. Hoyos ◽  
S. Leguey
Keyword(s):  
Optical Absorption ◽  
Room Temperature ◽  
Natural Diamonds ◽  
Room Temperature Optical Absorption

OPTICAL ABSORPTION AND ESR SPECTRAL STUDIES ON COPPER-DOPED LEAD-CADMIUM GLASSES

2005 ◽  
Vol 19 (03) ◽  
pp. 119-128 ◽  
Author(s):  
M. PRASAD ◽  
M. CHANDRASEKHAR ◽  
V. CHANDRA MOULI
Keyword(s):  
Optical Absorption ◽  
Absorption Spectra ◽  
Room Temperature ◽  
Spectral Studies ◽  
Optical Absorption Spectra ◽  
Prepared Glass ◽  
Spin Resonance ◽  
Spectral Profiles ◽  
Hamiltonian Parameters ◽  
Ligand Bond

The electron spin resonance and optical absorption spectra of PbO-CdO glasses containing 1 mole% CuO have been investigated at room temperature. The optical absorption spectra of all glass samples have exhibited a broad asymmetric absorption band, which corresponds to a d–d transition of Cu 2+ ions. The prepared glass samples have been analyzed as a function of the photon energy. The results are interpreted based on the optical absorption spectral profiles and also the edge values upon the application of Davis and Mott's theory. From the ESR spectral features, the spin Hamiltonian parameters have been evaluated. The bonding coefficients were obtained, in order to elucidate the information on the Cu 2+ ligand bond nature.

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