Impurity redistribution in Bi‐implanted Si after nanosecond and picosecond Nd laser pulse irradiation

1982 ◽  
Vol 41 (5) ◽  
pp. 456-458 ◽  
Author(s):  
S. U. Campisano ◽  
P. Baeri ◽  
E. Rimini ◽  
A. M. Malvezzi ◽  
G. Russo
Keyword(s):  
Laser Pulse ◽  
Pulse Irradiation ◽  
Impurity Redistribution

Silicon Bipolar Transistors Fabricated using Ion Implantation and Laser Annealing

1980 ◽  
Vol 1 ◽  
Author(s):  
Nobuyoshi Natsuaki ◽  
Takao Miyazaki ◽  
Makoto Ohkura ◽  
Toru Nakamura ◽  
Masao Tamura ◽  
...  
Keyword(s):  
Low Temperature ◽  
Laser Pulse ◽  
Laser Irradiation ◽  
Ruby Laser ◽  
Laser Annealing ◽  
Bipolar Transistors ◽  
Pulse Irradiation ◽  
Irradiation Effects ◽  
Furnace Annealing ◽  
Temperature Furnace

ABSTRACTBipolar transistors with laser annealed base and emitter, as well as those with furnace annealed base and laser annealed emitter, have been successfully fabricated using Q-switched ruby laser pulse irradiation. The performance of laser asannealed transistors is rather poor. However, it can be improved, to some extent, by relatively low temperature furnace annealing after laser irradiation. DC and RF characteristics of laser annealed transistors are presented in conjunction with laser irradiation effects on the characteristics of conventionally fabricated transistors.

Temperature Field of Repetitive Laser Pulse Irradiation and its Effect on Laser Surface Hardening

2011 ◽  
Vol 110-116 ◽  
pp. 823-830 ◽  
Author(s):  
Aniruddha Gupta ◽  
Ashish Kumar Nath
Keyword(s):  
Laser Pulse ◽  
Surface Hardening ◽  
Continuous Wave ◽  
High Carbon Steel ◽  
Laser Pulses ◽  
Phase Transformation Temperature ◽  
Continuous Wave Laser ◽  
Pulse Irradiation ◽  
Soaking Time ◽  
Analytical Expressions

Analytical expressions for the temperature rise in a semi-infinite workpiece due to the heating with CW and repetitive laser pulse irradiation have been derived. It has been shown that the soaking time at a temperature above the phase transformation temperature, on which the homogeneity of microstructure and the depth of hardening depend, can be increased by heating with repetitive laser pulses. Experimental results of surface hardening of high-carbon steel with repetitive laser pulses showed higher depth of hardening and better microstructure homogeneity compared to those with continuous wave laser.

Removal of water from a shallow bath under laser pulse irradiation

2011 ◽  
Vol 41 (5) ◽  
pp. 453-458 ◽  
Author(s):  
L I Antonova ◽  
G G Gladush ◽  
A F Glova ◽  
S V Drobyazko ◽  
A G Krasyukov ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Pulse Irradiation

scholarly journals X-ray spectroscopy diagnoses of clusters surviving under prepulses of ultra-intense femtosecond laser pulse irradiation

2012 ◽  
Vol 30 (3) ◽  
pp. 481-488 ◽  
Author(s):  
A.Ya. Faenov ◽  
I.Yu. Skobelev ◽  
T.A. Pikuz ◽  
S.A. Pikuz ◽  
V.E. Fortov ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Femtosecond Laser ◽  
Femtosecond Laser Pulse ◽  
Quantitative Estimation ◽  
Cluster Core ◽  
Spectroscopic Methods ◽  
Pulse Irradiation ◽  
X Ray ◽  
Dense Cluster ◽  
The Moment

AbstractIt is shown that various spectroscopic methods based on measurements of X-ray spectra radiated from cluster targets can be used for estimation of the destruction degree of clusters by laser prepulses. These methods allow insight to be gained regarding the important issue of preservation of the dense cluster core at the moment of the arrival of the main laser pulse. In addition, they can be used for quantitative estimation of the size of the undestroyed parts of the clusters and also for measuring the temperature and density of the preplasmas produced by the laser prepulses.

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