The role of radiative transfer in pulsed laser plasma-target interactions

1978 ◽  
Author(s):  
R. MITCHELL ◽  
R. CONRAD ◽  
E. ROY ◽  
D. KEEFER ◽  
W. MATHEWS
Keyword(s):  
Radiative Transfer ◽  
Laser Plasma ◽  
Pulsed Laser ◽  
Plasma Target

The role of radiative transfer in pulsed laser plasma-target interactions

1978 ◽  
Vol 20 (5) ◽  
pp. 519-531 ◽  
Author(s):  
R.W. Mitchell ◽  
R.W. Conrad ◽  
E.L. Roy ◽  
Dennis Keefer ◽  
C. Weldon Matthews
Keyword(s):  
Radiative Transfer ◽  
Laser Plasma ◽  
Pulsed Laser ◽  
Plasma Target

Role of target conditioning on the thermo-optical response of bismuth nanostructures produced by pulsed laser deposition

2012 ◽  
Vol 110 (4) ◽  
pp. 863-867 ◽  
Author(s):  
R. Serna ◽  
M. Jiménez de Castro ◽  
J. Toudert ◽  
E. Haro-Poniatowski ◽  
J. García López
Keyword(s):  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Optical Response ◽  
Laser Deposition

Growth Mechanism and Film Properties in Pulsed Laser-Plasma Deposition

1991 ◽  
Vol 236 ◽  
Author(s):  
S. Metev ◽  
K. Meteva
Keyword(s):  
Laser Plasma ◽  
Growth Process ◽  
Plasma Deposition ◽  
Pulsed Laser ◽  
Deposition Process ◽  
Experimental Investigations ◽  
Direct Relation ◽  
Film Properties ◽  
Experimental Conditions ◽  
Laser Flux

AbstractIn the paper the results of a theoretical investigation of the growth process of laser-plasma deposited thin films are discussed. A kinetic approach has been used to establish direct relation between experimental conditions (laser flux density, substrate temperature) and film properties (thickness, structure). The results of some experimental investigations of the deposition process are presented confirming the general conclusions of the developed theoretical model.

scholarly journals Scale dependence of cirrus heterogeneity effects. Part II: MODIS NIR and SWIR channels

2018 ◽  
Vol 18 (16) ◽  
pp. 12105-12121 ◽  
Author(s):  
Thomas Fauchez ◽  
Steven Platnick ◽  
Tamás Várnai ◽  
Kerry Meyer ◽  
Céline Cornet ◽  
...  
Keyword(s):  
Radiative Transfer ◽  
Spatial Resolution ◽  
Thermal Infrared ◽  
Radiative Effects ◽  
Ice Clouds ◽  
Plane Parallel ◽  
Wide Range ◽  
The Impact ◽  
Side Illumination

Abstract. In a context of global climate change, the understanding of the radiative role of clouds is crucial. On average, ice clouds such as cirrus have a significant positive radiative effect, but under some conditions the effect may be negative. However, many uncertainties remain regarding the role of ice clouds on Earth's radiative budget and in a changing climate. Global satellite observations are particularly well suited to monitoring clouds, retrieving their characteristics and inferring their radiative impact. To retrieve ice cloud properties (optical thickness and ice crystal effective size), current operational algorithms assume that each pixel of the observed scene is plane-parallel and homogeneous, and that there is no radiative connection between neighboring pixels. Yet these retrieval assumptions are far from accurate, as real radiative transfer is 3-D. This leads to the plane-parallel and homogeneous bias (PPHB) plus the independent pixel approximation bias (IPAB), which impacts both the estimation of top-of-the-atmosphere (TOA) radiation and the retrievals. An important factor that determines the impact of these assumptions is the sensor spatial resolution. High-spatial-resolution pixels can better represent cloud variability (low PPHB), but the radiative path through the cloud can involve many pixels (high IPAB). In contrast, low-spatial-resolution pixels poorly represent the cloud variability (high PPHB), but the radiation is better contained within the pixel field of view (low IPAB). In addition, the solar and viewing geometry (as well as cloud optical properties) can modulate the magnitude of the PPHB and IPAB. In this, Part II of our study, we simulate TOA 0.86 and 2.13 µm solar reflectances over a cirrus uncinus scene produced by the 3DCLOUD model. Then, 3-D radiative transfer simulations are performed with the 3DMCPOL code at spatial resolutions ranging from 50 m to 10 km, for 12 viewing geometries and nine solar geometries. It is found that, for simulated nadir observations taken at resolution higher than 2.5 km, horizontal radiation transport (HRT) dominates biases between 3-D and 1-D reflectance calculations, but these biases are mitigated by the side illumination and shadowing effects for off-zenith solar geometries. At resolutions coarser than 2.5 km, PPHB dominates. For off-nadir observations at resolutions higher than 2.5 km, the effect that we call THEAB (tilted and homogeneous extinction approximation bias) due to the oblique line of sight passing through many cloud columns contributes to a large increase of the reflectances, but 3-D radiative effects such as shadowing and side illumination for oblique Sun are also important. At resolutions coarser than 2.5 km, the PPHB is again the dominant effect. The magnitude and resolution dependence of PPHB and IPAB is very different for visible, near-infrared and shortwave infrared channels compared with the thermal infrared channels discussed in Part I of this study. The contrast of 3-D radiative effects between solar and thermal infrared channels may be a significant issue for retrieval techniques that simultaneously use radiative measurements across a wide range of solar reflectance and infrared wavelengths.

The role of Ag in the pulsed laser growth of YBCO thin films

1999 ◽  
Vol 85 (9) ◽  
pp. 6636-6641 ◽  
Author(s):  
R. Kalyanaraman ◽  
S. Oktyabrsky ◽  
J. Narayan
Keyword(s):  
Thin Films ◽  
Pulsed Laser ◽  
Ybco Thin Films

Role of vanadium content in ZnO thin films grown by pulsed laser deposition

2007 ◽  
Vol 254 (4) ◽  
pp. 1228-1231 ◽  
Author(s):  
M.E. Koleva ◽  
P.A. Atanasov ◽  
N.N. Nedialkov ◽  
H. Fukuoka ◽  
M. Obara
Keyword(s):  
Thin Films ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Vanadium Content ◽  
Laser Deposition ◽  
Zno Thin Films

Role of oxygen pressure in growth of CeAlOx thin films on Si by pulsed laser deposition

2003 ◽  
Vol 94 (1) ◽  
pp. 594-597 ◽  
Author(s):  
L. Yan ◽  
L. B. Kong ◽  
J. S. Pan ◽  
C. K. Ong
Keyword(s):  
Thin Films ◽  
Pulsed Laser Deposition ◽  
Oxygen Pressure ◽  
Pulsed Laser ◽  
Laser Deposition
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