scholarly journals Multiple phase‐coherent laser pulses in optical spectroscopy. I. The technique and experimental applications

1983 ◽  
Vol 78 (5) ◽  
pp. 2279-2297 ◽  
Author(s):  
W. S. Warren ◽  
Ahmed H. Zewail
Keyword(s):  
Optical Spectroscopy ◽  
Laser Pulses ◽  
Multiple Phase

Optical spectroscopy study of nano- and microstructures fabricated by femtosecond laser pulses on ZnO based systems

CrystEngComm ◽  
2018 ◽  
Vol 20 (21) ◽  
pp. 2952-2960 ◽  
Author(s):  
Esther de Prado ◽  
Camilo Florian ◽  
Belén Sotillo ◽  
Jan Siegel ◽  
Javier Solis ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Optical Spectroscopy ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Luminescence Properties ◽  
Spectroscopy Study ◽  
Self Organized ◽  
Aspect Ratios

Self-organized nanowires with large aspect ratios and beehive-like structures with well preserved luminescence properties.

Multiple phase transitions investigated by high-speed TEM

1990 ◽  
Vol 48 (4) ◽  
pp. 550-551
Author(s):  
Oleg Bostanjoglo ◽  
Peter Thomsen-Schmidt
Keyword(s):  
Phase Transitions ◽  
High Speed ◽  
Short Exposure ◽  
Semiconductor Film ◽  
Time Resolved ◽  
Short Exposure Time ◽  
Multiple Phase ◽  
Model Substance ◽  
History Of ◽  
Electron Image

Thin GexTe1-x (x = 0.15-0.8) were studied as a model substance of a composite semiconductor film, in addition being of interest for optical storage material. Two complementary modes of time-resolved TEM were used to trace the phase transitions, induced by an attached Q-switched (50 ns FWHM) and frequency doubled (532 nm) Nd:YAG laser. The laser radiation was focused onto the specimen within the TEM to a 20 μm spot (FWHM). Discrete intermediate states were visualized by short-exposure time doubleframe imaging /1,2/. The full history of a transformation was gained by tracking the electron image intensity with photomultiplier and storage oscilloscopes (space/time resolution 100 nm/3 ns) /3/. In order to avoid radiation damage by the probing electron beam to detector and specimen, the beam is pulsed in this continuous mode of time-resolved TEM,too.Short events ( <2 μs) are followed by illuminating with an extended single electron pulse (fig. 1c)

Causal heat transport induced by zeptosecond laser pulses

2002 ◽  
Vol 12 (3) ◽  
pp. 201-206 ◽  
Author(s):  
Janina Marciak-Kozłowska ◽  
Mirosław Kozłowski
Keyword(s):  
Heat Transport ◽  
Laser Pulses

Transient collisional excitation X-ray laser generation with picoseconds laser pulses

2001 ◽  
Vol 11 (PR2) ◽  
pp. Pr2-39-Pr2-42 ◽  
Author(s):  
M. Kado ◽  
T. Kawachi ◽  
N. Hasegawa ◽  
M. Tanaka ◽  
K. Sukegawa ◽  
...  
Keyword(s):  
Laser Pulses ◽  
Laser Generation ◽  
Collisional Excitation ◽  
X Ray
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