Instationary conjugate optical-thermal fields in thin films due to pulsed laser heating: A comparison between back and front treatment

1998 ◽  
Vol 34 (4) ◽  
pp. 255-261 ◽  
Author(s):  
N. Bianco ◽  
O. Manca ◽  
B. Morrone
Keyword(s):  
Thin Films ◽  
Laser Heating ◽  
Pulsed Laser ◽  
Thermal Fields ◽  
Pulsed Laser Heating

Thermal Shock and Thermal Fatigue of Ferroelectric Thin Film due to Pulsed Laser Heating

2005 ◽  
Vol 9 ◽  
pp. 69-78 ◽  
Author(s):  
X.J. Zheng ◽  
S.F. Deng ◽  
Yi Chun Zhou ◽  
Naotake Noda
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Thermal Shock ◽  
Thermal Fatigue ◽  
Laser Heating ◽  
Ferroelectric Properties ◽  
Pulsed Laser ◽  
Pzt Thin Film ◽  
Heating Test ◽  
Pulsed Laser Heating

Thermal shock and thermal fatigue of ferroelectric (FE) thin films were investigated by the pulsed laser tests. The power density was gradually increasing in the single pulsed laser heating test which simulated a thermal shock, the part melting threshold of Pb(Zr0.52Ti0.48)O3 (PZT) thin films was found by scanning electron microscopy (SEM). After thermal shock resulted the highest temperature below Curie point at the surface of PZT thin film, X-ray diffraction (XRD), SEM and RT66A standard ferroelectrics analyzer were used to study the microstructure, crystal grain sizes, and ferroelectric failure behavior. It was found that XRD peak of PZT thin film after laser beam heating was stronger than that before laser beam heating, crystal grain sizes decreased, and the ferroelectric properties were degraded. However there was no crack observed by SEM, until PZT thin films were melted. The fined grain effects on ferroelectric properties and XRD patterns of PZT thin film, depolarization due to the single pulsed laser heating were discussed respectively. The pulsed cycles with a certain power density were gradually increasing in the repetition pulsed laser heating test. It was interesting to find that the cracks will initiate and propagate due to the thermal fatigue induced by the repetition pulsed laser. The possible origins of the thermal fatigue cracks were also discussed.

Pulsed laser heating of soot: morphological changes

Carbon ◽  
1999 ◽  
Vol 37 (2) ◽  
pp. 231-239 ◽  
Author(s):  
Randy L Vander Wal ◽  
Mun Y Choi
Keyword(s):  
Laser Heating ◽  
Morphological Changes ◽  
Pulsed Laser ◽  
Pulsed Laser Heating

Thermal Modeling of the Cavity in Pulsed Excimer Laser Calorimeters

2000 ◽  
Author(s):  
D. H. Chen ◽  
Z. M. Zhang
Keyword(s):  
Laser Heating ◽  
Average Power ◽  
Pulsed Laser ◽  
Thermal Response ◽  
Element Model ◽  
Electrical Heating ◽  
Deep Ultraviolet ◽  
Simplified Finite Element Model ◽  
193 Nm ◽  
Pulsed Laser Heating

Abstract A simplified finite element model is built to study the thermal response of the 193-nm pulsed-laser calorimeter. The nonequivalence between pulsed-laser heating and electrical heating is estimated to be 0.46% at the thermocouple locations by comparing the calibration factors for average-power laser heating and electrical heating. This study should help the development of calibration and measurement standards in pulsed energy measurements for deep ultraviolet excimer lasers that are important for photolithographic and materials processing applications.

Effect of pulsed laser heating on the magnetic properties of the amorphous alloy Fe76Si13B11

2009 ◽  
Vol 108 (2) ◽  
pp. 125-130 ◽  
Author(s):  
V. V. Girzhon ◽  
A. V. Smolyakov ◽  
N. G. Babich ◽  
M. P. Semen’ko
Keyword(s):  
Magnetic Properties ◽  
Amorphous Alloy ◽  
Laser Heating ◽  
Pulsed Laser ◽  
Pulsed Laser Heating

A Computer Model for Pulsed Laser Heating of Device Structures

1981 ◽  
Vol 128 (8) ◽  
pp. 1798-1803 ◽  
Author(s):  
D. J. Godfrey ◽  
A. C. Hill ◽  
C. Hill
Keyword(s):  
Computer Model ◽  
Laser Heating ◽  
Pulsed Laser ◽  
Device Structures ◽  
Pulsed Laser Heating

Molecular dynamics study of lubricant depletion by pulsed laser heating

2018 ◽  
Vol 440 ◽  
pp. 73-83 ◽  
Author(s):  
Young Woo Seo ◽  
Andreas Rosenkranz ◽  
Frank E. Talke
Keyword(s):  
Molecular Dynamics ◽  
Laser Heating ◽  
Pulsed Laser ◽  
Lubricant Depletion ◽  
Pulsed Laser Heating
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