Analyzing thermal effect in KTN crystal for high-speed continuous optical beam deflection

2020 ◽  
Author(s):  
Yun Goo Lee ◽  
Chang-Jiang Chen ◽  
Annan Q. Shang ◽  
Ruijia Liu ◽  
Shizhuo Yin
Keyword(s):  
Thermal Effect ◽  
High Speed ◽  
Optical Beam ◽  
Beam Deflection

Accelerating laser processes with a smart two-dimensional polygon mirror scanner for ultra-fast beam deflection

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Florian Roessler ◽  
André Streek
Keyword(s):  
Energy Distribution ◽  
Real Time ◽  
Laser Processing ◽  
High Speed ◽  
Beam Deflection ◽  
Two Dimensional ◽  
Heat Accumulation ◽  
Field Programmable ◽  
Drill Holes ◽  
Average Laser

Abstract In laser processing, the possible throughput is directly scaling with the available average laser power. To avoid unwanted thermal damage due to high pulse energy or heat accumulation during MHz-repetition rates, energy distribution over the workpiece is required. Polygon mirror scanners enable high deflection speeds and thus, a proper energy distribution within a short processing time. The requirements of laser micro processing with up to 10 kW average laser powers and high scan speeds up to 1000 m/s result in a 30 mm aperture two-dimensional polygon mirror scanner with a patented low-distortion mirror configuration. In combination with a field programmable gate array-based real-time logic, position-true high-accuracy laser switching is enabled for 2D, 2.5D, or 3D laser processing capable to drill holes in multi-pass ablation or engraving. A special developed real-time shifter module within the high-speed logic allows, in combination with external axis, the material processing on the fly and hence, processing of workpieces much larger than the scan field.

Development of multi-environment dual-probe atomic force microscopy system using optical beam deflection sensors with vertically incident laser beams

2013 ◽  
Vol 84 (8) ◽  
pp. 083701 ◽  
Author(s):  
Eika Tsunemi ◽  
Kei Kobayashi ◽  
Noriaki Oyabu ◽  
Masaharu Hirose ◽  
Yoshiko Takenaka ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Optical Beam ◽  
Laser Beams ◽  
Beam Deflection ◽  
Incident Laser ◽  
Force Microscopy ◽  
Atomic Force ◽  
Dual Probe

Multi-Probe Atomic Force Microscopy with Optical Beam Deflection Method

2007 ◽  
Vol 46 (8B) ◽  
pp. 5636-5638 ◽  
Author(s):  
Eika Tsunemi ◽  
Nobuo Satoh ◽  
Yuji Miyato ◽  
Kei Kobayashi ◽  
Kazumi Matsushige ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Optical Beam ◽  
Beam Deflection ◽  
Force Microscopy ◽  
Atomic Force

A two-axis in-plane motion measurement system based on optical beam deflection

2013 ◽  
Vol 84 (10) ◽  
pp. 105001 ◽  
Author(s):  
R. Sriramshankar ◽  
R. Sri Muthu Mrinalini ◽  
G. R. Jayanth
Keyword(s):  
Measurement System ◽  
Plane Motion ◽  
Optical Beam ◽  
Beam Deflection ◽  
Motion Measurement

Research of a New All-Optical Solid-State Scanner Based on GaAs

2013 ◽  
Vol 710 ◽  
pp. 269-272
Author(s):  
Guo Ya Xu ◽  
Jun Hua He ◽  
Fan Sen ◽  
Yuan Tao Zhu
Keyword(s):  
Solid State ◽  
Optical Waveguide ◽  
High Speed ◽  
Refractive Index Change ◽  
Core Layer ◽  
Beam Deflection ◽  
Optical Scanning ◽  
Signal Light ◽  
Change Effect ◽  
All Optical

Design an all-optical solid-state scanner chip, which can realize high speed light deflection in a very small space, instead of electron beam deflection scan image converter tube and opto-mechanical scanner, cancel the complicated mechanical components, use the all-optical scanning to realize the super fast phenomenon observation. The beam deflection system is based on semiconductor optical waveguide core layer carrier induced refractive index change effect to realize, its development work is mainly divided into semiconductor optical waveguide and saw prisms two parts. And through the experiment, we measured deflection angle of the scanner chip to 1053nm signal light.

Optical beam deflection signal from a single microparticle

1990 ◽  
Vol 57 (1) ◽  
pp. 22-24 ◽  
Author(s):  
Jiaqi Wu ◽  
Takehiko Kitamori ◽  
Tsuguo Sawada
Keyword(s):  
Optical Beam ◽  
Beam Deflection
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