Transmission characteristics of germanium thin-film-coated metallic hollow waveguides for high-powered CO/sub 2/ laser light

1990 ◽  
Vol 26 (9) ◽  
pp. 1510-1515 ◽  
Author(s):  
A. Hongo ◽  
K.-I. Morosawa ◽  
T. Shiota ◽  
Y. Matsuura ◽  
M. Miyagi
Keyword(s):  
Thin Film ◽  
Laser Light ◽  
Transmission Characteristics ◽  
Hollow Waveguides

Low-Fluence Laser Induced Fragmentation and Desorption of 3,4,9,10-Perylenetetracarboxylic Dianhydride (PTCDA) Thin Film

2013 ◽  
Vol 543 ◽  
pp. 30-34 ◽  
Author(s):  
Aljona Ramonova ◽  
Tengiz Butkhuzi ◽  
Viktorija Abaeva ◽  
I.V. Tvauri ◽  
Soslan Khubezhov ◽  
...  
Keyword(s):  
Thin Film ◽  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Kinetic Energy ◽  
Atomic Oxygen ◽  
Laser Light ◽  
Pulsed Laser ◽  
Molecular Fragmentation ◽  
Irradiation Pulse ◽  
Main Effect

Laser-induced fragmentation and desorption of fragments of PTCDA films vacuum-deposited on GaAs (100) substrate has been studied by time-of-flight (TOF) mass spectroscopy. The main effect caused by pulsed laser light irradiation (pulse duration: 10 ns, photon energy: 2.34 eV and laser fluence ranging from 0.5 to 7 mJ/cm2) is PTCDA molecular fragmentation and desorption of the fragments formed, whereas no desorption of intact PTCDA molecule was detected. Fragments formed are perylene core C20H8, its half C10H4, carbon dioxide, carbon monoxide and atomic oxygen. All desorbing fragments have essentially different kinetic energy. The mechanism of photoinduced molecular fragmentation and desorption is discussed.

Low-Loss Transmission Characteristics of Transparent Conductive Thin Films in GHz Range

2011 ◽  
Vol 485 ◽  
pp. 207-210 ◽  
Author(s):  
Tsuyoshi Ogino ◽  
Naoki Ohashi ◽  
Shunichi Hishita ◽  
Isao Sakaguchi ◽  
Yutaka Adachi ◽  
...  
Keyword(s):  
Thin Film ◽  
Electromagnetic Field ◽  
Transparent Conductors ◽  
Transmission Characteristics ◽  
Low Loss ◽  
High Transparency ◽  
Field Simulation ◽  
Transparent Conductive Thin Film ◽  
Overall Resistance ◽  
Conductive Thin Films

The resistivity of transparent conductive thin film formed by sputtering exhibits a dependence on film thickness. In this study, an analysis by electromagnetic field simulation of resistance effect on the transmission characteristics was carried out. The overall resistance of the signal waveguide governs the transmission characteristics, and variation of the resistance at the interface between the substrate and the thin film has no significant effect. We evaluated a structure in which fine metal wiring that is not visible to the eye is placed on transparent conductors to reduce the resistance of the transmitting waveguide. Electromagnetic field simulations suggest that this structure improves the transmission characteristics while keeping high transparency.

Influences of Temperature and Stress on Transmission Characteristics of Multilayer Thin-Film Narrow Bandpass Filters

2001 ◽  
Vol 40 (Part 1, No. 6A) ◽  
pp. 4087-4096 ◽  
Author(s):  
Tei-Chen Chen ◽  
Jing-I Kuo ◽  
Wei-Lung Lee ◽  
Cheng-Chung Lee
Keyword(s):  
Thin Film ◽  
Bandpass Filters ◽  
Multilayer Thin Film ◽  
Transmission Characteristics
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