Volumetric laser heating of nanosuspension microdroplets: Slow evaporation to mid-air explosion

2021 ◽  
Vol 177 ◽  
pp. 121433
Author(s):  
Tianyi Li ◽  
Aravinda Kar ◽  
Ranganathan Kumar
Keyword(s):  
Laser Heating ◽  
Slow Evaporation ◽  
Air Explosion

CO2 laser heating of a ceramic coated nickel based superalloy

1999 ◽  
Author(s):  
A. Pitman ◽  
P. Byrd ◽  
J. Kamalu
Keyword(s):  
Co2 Laser ◽  
Laser Heating ◽  
Nickel Based Superalloy

Temperature profile in thin wires during laser heating

2013 ◽  
Author(s):  
Thiwanka Wickramasooriya ◽  
Aravinda Kar ◽  
Rajan Vaidyanathan
Keyword(s):  
Temperature Profile ◽  
Laser Heating ◽  
Thin Wires

scholarly journals Aggregation affects optical properties and photothermal heating of gold nanospheres

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yiru Wang ◽  
Zhe Gao ◽  
Zonghu Han ◽  
Yilin Liu ◽  
Huan Yang ◽  
...  
Keyword(s):  
Optical Properties ◽  
Cross Section ◽  
Laser Heating ◽  
Dipole Approximation ◽  
Gold Nanospheres ◽  
Extinction Cross Section ◽  
Heating Efficiency ◽  
Photothermal Heating ◽  
New Framework ◽  
Laser Calorimetry

AbstractLaser heating of gold nanospheres (GNS) is increasingly prevalent in biomedical applications due to tunable optical properties that determine heating efficiency. Although many geometric parameters (i.e. size, morphology) can affect optical properties of individual GNS and their heating, no specific studies of how GNS aggregation affects heating have been carried out. We posit here that aggregation, which can occur within some biological systems, will significantly impact the optical and therefore heating properties of GNS. To address this, we employed discrete dipole approximation (DDA) simulations, Ultraviolet–Visible spectroscopy (UV–Vis) and laser calorimetry on GNS primary particles with diameters (5, 16, 30 nm) and their aggregates that contain 2 to 30 GNS particles. DDA shows that aggregation can reduce the extinction cross-section on a per particle basis by 17–28%. Experimental measurement by UV–Vis and laser calorimetry on aggregates also show up to a 25% reduction in extinction coefficient and significantly lower heating (~ 10%) compared to dispersed GNS. In addition, comparison of select aggregates shows even larger extinction cross section drops in sparse vs. dense aggregates. This work shows that GNS aggregation can change optical properties and reduce heating and provides a new framework for exploring this effect during laser heating of nanomaterial solutions.

Surface Conduction Effect of Laser Heating in Liquid Crystal Films

1997 ◽  
Vol 26 (1) ◽  
pp. 41-45
Author(s):  
Mao Ye ◽  
Jing-Guo Yang
Keyword(s):  
Liquid Crystal ◽  
Laser Heating ◽  
Liquid Crystal Films ◽  
Crystal Films ◽  
Surface Conduction

High temperature diamond anvil cell with the laser heating

1989 ◽  
Vol 1 (5-6) ◽  
pp. 337-340 ◽  
Author(s):  
M. I. Eremets ◽  
V. V. Struzhkin ◽  
I. A. Trojan
Keyword(s):  
High Temperature ◽  
Laser Heating ◽  
Diamond Anvil Cell ◽  
Diamond Anvil

Study on the combined effect of duct scale and SBC concentration on duct-vented methane-air explosion

2021 ◽  
Vol 148 ◽  
pp. 939-949
Author(s):  
Minggao Yu ◽  
Yuanpeng Fu ◽  
Ligang Zheng ◽  
Rongkun Pan ◽  
Xi Wang ◽  
...  
Keyword(s):  
Combined Effect ◽  
Air Explosion
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