Nonlinear absorption of laser pulses in amorphous and crystalline As 2 S 3 thin films

1995 ◽  
Author(s):  
Valentin N. Chumash ◽  
G. Bostan ◽  
Ion A. Cojocaru ◽  
Niculae E. Mincu ◽  
P. Cerbari
Keyword(s):  
Thin Films ◽  
Nonlinear Absorption ◽  
Laser Pulses

Enhancement of Nonlinear Absorption in Defect Controlled ZnO Polycrystalline Thin Films by Means of Co‐Doping

2021 ◽  
pp. 2000539
Author(s):  
Bekir Asilcan Ünlü ◽  
Deniz Sener ◽  
Sezen Tekin ◽  
Elif Akhuseyin Yildiz ◽  
Ahmet Karatay ◽  
...  
Keyword(s):  
Thin Films ◽  
Nonlinear Absorption ◽  
Co Doping ◽  
Polycrystalline Thin Films

Nonlinear absorption of femtosecond laser pulses (800 nm) by atmospheric air and water vapour

2011 ◽  
Vol 41 (11) ◽  
pp. 976-979 ◽  
Author(s):  
A M Kiselev ◽  
Yu N Ponomarev ◽  
A N Stepanov ◽  
A B Tikhomirov ◽  
B A Tikhomirov
Keyword(s):  
Femtosecond Laser ◽  
Water Vapour ◽  
Nonlinear Absorption ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Atmospheric Air

CVD nanodiamond thin films as high yield photocathodes driven by UV laser pulses

2014 ◽  
Author(s):  
Jean-Paul Mazellier ◽  
Cyril Di Giola ◽  
Pierre Legagneux ◽  
Clement Hebert ◽  
Emmanuel Scorsonne ◽  
...  
Keyword(s):  
Thin Films ◽  
Laser Pulses ◽  
High Yield ◽  
Uv Laser

In‐Situ Fabrication of YBa2Cu3O7‐x Superconducting Thin Films Directly on Silicon Substrates with Tc0 > 77K

1989 ◽  
Vol 169 ◽  
Author(s):  
C. B. Lee ◽  
R. K. Singh ◽  
S. Sharan ◽  
A. K. Singh ◽  
P. Tiwari ◽  
...  
Keyword(s):  
Thin Films ◽  
Laser Pulses ◽  
Superconducting Film ◽  
Laser Evaporation ◽  
Silicon Substrates ◽  
Superconducting Thin Films ◽  
Si Substrates ◽  
In Situ Fabrication ◽  
Substrate Temperatures

AbstractWe report in‐situ fabrication of c‐axis textured YBa2Cu3O7‐x superconducting thin films with Tco > 77K on unbuffered silicon substrates by the biased pulsed laser evaporation (PLE) technique in the temperature range of 550‐650°C. At substrate temperatures below 550°C, no c‐axis texturing of the superconducting film was observed. The YBa2Cu3O7‐x superconducting films were fabricated by ablating a bulk YBa2Cu3O7 target by a XeCl excimer laser (λ = 308 nm, τ = 45 × 10‐9 sec) in a chamber maintained at an oxygen pressure of 0.2 torr . The thickness of the films was varied from 0.3 to 0.5 nm depending on the number of laser pulses. Extensive diffusion was observed in thin films deposited at substrate temperatures above 550°C. However, microstructurally, with increase in the substrate temperature the films exhibited larger grain size and greater degree of c‐axis texturing (measured by the ratio of the (005) and (110) X‐ray diffraction peaks). This was found to give rise to better superconducting properties with Tco exceeding 77 K for YBa2Cu3O7‐x films deposited on Si substrates at 650°C.

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