Simultaneous All-Optical Determination of Molecular Concentration and Extinction Coefficient

2013 ◽  
Vol 85 (11) ◽  
pp. 5514-5521 ◽  
Author(s):  
Byungmoon Cho ◽  
Vivek Tiwari ◽  
David M. Jonas
Keyword(s):  
Extinction Coefficient ◽  
All Optical ◽  
Molecular Concentration ◽  
Optical Determination

All Optical Determination of Microscopic and Macroscopic Structure of Chiral, Polar Microcrystals from Achiral, Nonpolar Molecules

2012 ◽  
Vol 116 (22) ◽  
pp. 12219-12225 ◽  
Author(s):  
Stijn Van Cleuvenbergen ◽  
Gunther Hennrich ◽  
Pieter Willot ◽  
Guy Koeckelberghs ◽  
Koen Clays ◽  
...  
Keyword(s):  
Macroscopic Structure ◽  
All Optical ◽  
Optical Determination ◽  
Nonpolar Molecules

Picosecond Optical Determination of Carrier Lifetime in Polysilicon Films

1987 ◽  
Vol 106 ◽  
Author(s):  
N. K. Bambha ◽  
W. L. Nighan ◽  
I. H. Campbell ◽  
P. M. Fauchet ◽  
N. M. Johnson
Keyword(s):  
Carrier Lifetime ◽  
Hydrogen Diffusion ◽  
Time Resolved ◽  
Trapping Time ◽  
All Optical ◽  
Boundary States ◽  
Polysilicon Films ◽  
Optical Determination ◽  
Subnanosecond Time

ABSTRACTThe lifetime of optically injected carriers is determined in polySi/SiO2/Si structures grown by LPCVD at 625°C. These samples are as-grown, have undergone H diffusion or have been implanted by phosphorous ions, followed by various annealing schedules. The lifetime measurement is done in an all-optical, contactless fashion, using the tools of picosecond time-resolved spectroscopy. We find that the lifetime due to recombination at the grain boundaries (trapping time) increases after implantation only if subsequent annealing increases the grain size. The trapping time also increases after hydrogen diffusion. After trapping in relatively shallow grain boundary states, thermalization into deeper lying states is slow on a subnanosecond time scale.

All-optical determination of initial oxidation of Si(100) and its kinetics

2008 ◽  
Vol 66 (4) ◽  
pp. 427-431 ◽  
Author(s):  
N. Witkowski ◽  
K. Gaál-Nagy ◽  
F. Fuchs ◽  
O. Pluchery ◽  
A. Incze ◽  
...  
Keyword(s):  
Initial Oxidation ◽  
All Optical ◽  
Optical Determination
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