scholarly journals NONLINEAR OPTICAL EFFECTS OF POLYCRYSTALLINE WAVEGUIDE THIN FILM BY HIGH POWER LASER EXCITATION

1985 ◽  
Vol 34 (3) ◽  
pp. 414
Author(s):  
XU DE-WEI ◽  
WANG XIAN-XIU ◽  
ZHAO JI-RAN ◽  
JIANG MIN-HUA
Keyword(s):  
Thin Film ◽  
High Power ◽  
Nonlinear Optical ◽  
Laser Excitation ◽  
High Power Laser ◽  
Power Laser ◽  
Optical Effects ◽  
Nonlinear Optical Effects

Formation of a photo-oxidized protective thin film with waterproof and high-power laser tolerance properties

2008 ◽  
Author(s):  
Masataka Murahara ◽  
Yuji Sato ◽  
Takayuki Funatsu ◽  
Takahisa Jitsuno ◽  
Yoshiaki Okamoto
Keyword(s):  
Thin Film ◽  
High Power ◽  
High Power Laser ◽  
Power Laser

Identifying Defects in Thin Film of High Power Laser Lens by Using Near Field Microimaging Method

2017 ◽  
Vol 44 (1) ◽  
pp. 0103001
Author(s):  
白忠臣 Bai Zhongchen ◽  
黄兆岭 Huang Zhaoling ◽  
郝礼才 Hao Licai ◽  
陆安江 Lu Anjiang ◽  
秦水介 Qin Shuijie
Keyword(s):  
Thin Film ◽  
High Power ◽  
Near Field ◽  
High Power Laser ◽  
Power Laser

Dynamic Thermal Thin Film Processing of Large Areas With High Power Laser Sources

2009 ◽  
Author(s):  
Frank Kubacki ◽  
Dirk Hauschild ◽  
Mikhail Ivanenko ◽  
Jens Meinschien ◽  
Andreas Bayer ◽  
...  
Keyword(s):  
Thin Film ◽  
High Power ◽  
Beam Profile ◽  
Laser Source ◽  
Free Form ◽  
High Power Laser ◽  
Power Laser ◽  
Semiconductor Wafer ◽  
Laser Sources ◽  
The Right

High power laser sources are used in various production tools for cutting, welding and hardening of metal parts and patterning, annealing and lithography of flat panel displays, solar cells and microelectronic devices. Beside the right choice of the laser source suitable high performance optical beam delivery and shaping systems are needed for generating the appropriate beam profile and intensity distribution are of high importance for the right processing speed, quality and yield. In addition to the typical laser processes with circular beam shapes LIMO has developed laser sources with line shaped beams for large area processing for e.g. crystallization and tempering of conducting and semi-conducting films on glass for FPD, PV and thermal processing of semiconductor wafer, coated float glass and sheet metal. Due to the high power density of several 100kW/cm2 and line length up to several hundred millimetres a treatment capacity of several m2 per minute and processing speeds up to 1 m/s can be achieved per laser head with typical scan & repeat processes. The use of multiple laser heads in one machine scales the productivity to the individual needs. The high scanning speed together with line widths of 0,01mm to 0,1mm is the basis for heating only a few microns of the surfaces layers and no costly cooling time is needed like with regular heating technologies. With this controlled surface heating even more sensitive materials can be processes like inks on polymers and paper for RFIDs, printed solar absorbers and coatings. For industrial applications equally important is an adequate understanding of the physics of the light-matter interaction behind the process. In advance simulations of the tool performance can minimize technical and financial risk as well as lead times for prototyping and introduction into series production. Based on this knowledge together with a unique free-form micro-lens array production technology and patented micro-optics beam shaping designs a number of novel production tool sub-systems have been built by LIMO: 1. a multi-kilowatt direct diode illumination modules for solar cell annealing, and crystallization; 2. a novel green laser beam line for the annealing of silicon thin films on glass; 3. a novel wavefront shaping optics that generates a top hat beam profile from a TEM00 high-power laser source for accurate thin film structuring. For each of these sub-system basic functionalities, design principles and performance results are presented with a special emphasis on resilience, cost reduction and process reliability.

Formation of nonlinear optical MQD (metal quantum dot) in waveguides and modification by high-power laser irradiation

1998 ◽  
Author(s):  
Giancarlo Battaglin ◽  
E. Borsella ◽  
Giovanna De Marchi ◽  
Francesco Gonella ◽  
G. Mattei ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Laser Irradiation ◽  
High Power ◽  
Nonlinear Optical ◽  
High Power Laser ◽  
Power Laser

Transient Absorption of Organic Molecules under High-Power Laser Excitation

2005 ◽  
Vol 48 (9) ◽  
pp. 901-906 ◽  
Author(s):  
V. A. Svetlichnyi ◽  
T. N. Kopylova ◽  
G. V. Mayer ◽  
I. N. Lapin
Keyword(s):  
High Power ◽  
Organic Molecules ◽  
Transient Absorption ◽  
Laser Excitation ◽  
High Power Laser ◽  
Power Laser
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