Micro-Raman analysis of samples irradiated at the FLASH facility in Summer 2014 (Report v1-31_05_2016)
Toufarová, Martina; Hájková, Věra; Chalupský, Jaromír; Juha, Libor
2016 - English
The goal of micro-Raman measurements was to indicate a presence of the carbon black grown in the FEL-illuminated areas on the sample surface. Twelve samples have been investigated and results have been reported to the X-ray Optics Group at the University of Twente.
Keywords:
radiation damage; carbon black; free-electron laser; soft x-rays; Raman spectroscopy
Available at various institutes of the ASCR
Micro-Raman analysis of samples irradiated at the FLASH facility in Summer 2014 (Report v1-31_05_2016)
The goal of micro-Raman measurements was to indicate a presence of the carbon black grown in the FEL-illuminated areas on the sample surface. Twelve samples have been investigated and results have ...
AlSb/InAsSb/AlSb deep QWs for the two band high temperature superlinear luminescence
Hulicius, Eduard; Hospodková, Alice; Pangrác, Jiří; Mikhailova, M.
2015 - English
InAlAsSb/GaSb based hetero-nanostructures with deep quantum wells grown on GaSb are promising materials for the optoelectronic devices for near- and mid-IR spectral regions. Optical power and quantum efficiency of the LEDs based on the narrow bandgap semiconductor compounds (InGa)(AsSb) are limited by the nonradiative Auger recombination. Earlier we have proposed a method to increase the optical power in the bulk narrow bandgap and later in GaSb-based nanostructures with a deep QW by the effect of impact ionization on the QW with high band offset.
Keywords:
quantum wells; luminescence; AlSb/InAsSb/AlSb
Available at various institutes of the ASCR
AlSb/InAsSb/AlSb deep QWs for the two band high temperature superlinear luminescence
InAlAsSb/GaSb based hetero-nanostructures with deep quantum wells grown on GaSb are promising materials for the optoelectronic devices for near- and mid-IR spectral regions. Optical power and quantum ...
BRK Technologies s.r.o. - Laser incineration of toxic medical wastes: towards to 100% safety
Rostohar, Danijela; Bulgakova, Nadezhda M.; Flimelová, Miroslava
2015 - English
The aim of the project is to design, construct and optimize a prototype of a laser incineration chamber (LICh) for treatment of toxic medical wastes. The LICh must provide safe incineration of organic wastes by an intense laser beam generating very high temperature of the incineration process. The LICh and involved technology must be relatively cheap and mobile for easy installation near the medical institutions producing toxic wastes. The most important aspect is the control of incineration products to ensure 100% safety of the gases issuing into atmosphere from the LICh. This is the first step of the whole project with aim to do the state of the art study and propose next steps.
Keywords:
laser incineration chamber; waste removal; toxic wastes
Available at various institutes of the ASCR
BRK Technologies s.r.o. - Laser incineration of toxic medical wastes: towards to 100% safety
The aim of the project is to design, construct and optimize a prototype of a laser incineration chamber (LICh) for treatment of toxic medical wastes. The LICh must provide safe incineration of organic ...
Investigation of thermal depolarization in high-power TGG ceramic rods
Lucianetti, Antonio
2015 - English
Wavefront deformation and thermal stress birefringence were evaluated for high-power TGG ceramic rods. The real laser beam profile used to heat the TGG ceramics was considered in the calculations. The numerical model was bench-marked with experimental data at about 100 W and then used to study the scalability of a similar TGG-based optical isolator up to 1 kW average power.
Keywords:
thermal modeling; optical isolation; birefringence
Available at various institutes of the ASCR
Investigation of thermal depolarization in high-power TGG ceramic rods
Wavefront deformation and thermal stress birefringence were evaluated for high-power TGG ceramic rods. The real laser beam profile used to heat the TGG ceramics was considered in the calculations. The ...
Characterization of amorphous and microcrystalline Si layers and ZnO layers on glass
Vaněček, Milan; Holovský, Jakub; Poruba, Aleš; Remeš, Zdeněk; Purkrt, Adam
2015 - English
Optical and photoelectrical properties of materials from TEL Solar were characterized in the Institute of Physics, AS CR in a broad spectral region and a high dynamic range. Conclusions on material properties with respect to thin film silicon solar cells were drawn.
Keywords:
optical properties; amorphous silicon; microcrystalline silicon; ZnO
Available at various institutes of the ASCR
Characterization of amorphous and microcrystalline Si layers and ZnO layers on glass
Optical and photoelectrical properties of materials from TEL Solar were characterized in the Institute of Physics, AS CR in a broad spectral region and a high dynamic range. Conclusions on material ...
Mitsubishi Heavy Industries Aero Engines, Ltd. – Feasibility test of short pulse laser drilling on metal alloy plate
Miura, Taisuke
2015 - English
We have constructed a laser drilling station for metal plates supplied by MHIAEL. We have succeeded to demonstrate the fast drilling on the metal plates within 0.1sec using our thin disk regenerative amplifier. This result leaded to the additional contract with the guest on February 2016.
Keywords:
short pulse laser; drilling; metal alloy
Available at various institutes of the ASCR
Mitsubishi Heavy Industries Aero Engines, Ltd. – Feasibility test of short pulse laser drilling on metal alloy plate
We have constructed a laser drilling station for metal plates supplied by MHIAEL. We have succeeded to demonstrate the fast drilling on the metal plates within 0.1sec using our thin disk regenerative ...
Utsunomiya University – Prototyping of pump laser optics for compact thin disk head
Miura, Taisuke
2015 - English
We have constructed a compact thin disk head designed by HiLASE. We demonstrated the CW output from the thin disk head with the efficiency of higher than 30% and the good beam quality. This result leaded to the additional contract with Utsunomiya University on February 2016.
Keywords:
pump laser; optics; compact thin disk head
Available at various institutes of the ASCR
Utsunomiya University – Prototyping of pump laser optics for compact thin disk head
We have constructed a compact thin disk head designed by HiLASE. We demonstrated the CW output from the thin disk head with the efficiency of higher than 30% and the good beam quality. This result ...
MEDICEM Institute, spol. s.r.o. - Technology to shape hydrogels by lasers
Rostohar, Danijela; Flimelová, Miroslava
2015 - English
We have prepared study with aim to propose a technology allowing to shape hydrogels by lasers and to describe a project (including timelines, milestones, team and budget) that would lead to the development of such technology, including supportive scientific, technical and theoretical information.
Keywords:
hydrogels; lasers; intraocular implants; intraocular lenses
Available at various institutes of the ASCR
MEDICEM Institute, spol. s.r.o. - Technology to shape hydrogels by lasers
We have prepared study with aim to propose a technology allowing to shape hydrogels by lasers and to describe a project (including timelines, milestones, team and budget) that would lead to the ...
Thermocouples
Kopeček, Jaromír
2015 - English
Analsis of different samples of thermocouples before and after laser marking what is used to produce barcode close to spike of the probes. The aim is to investigate the influence of laser marking by detailed analysis of the material structure of the samples.
Keywords:
laser marking; thermocouple; analysis; inconel
Available at various institutes of the ASCR
Thermocouples
Analsis of different samples of thermocouples before and after laser marking what is used to produce barcode close to spike of the probes. The aim is to investigate the influence of laser marking by ...
Preparation and characterzation of optical materials
Nikl, Martin
2012 - English
Technology has been optimized to provide longer cylindrical parts of an optical crystal for laser applications. Specific optical characteristics along the crystals grown have been measured and evaluated. At another kind of laser crystals the specific impurities were followed by magnetic and optical spectroscopies and their influence on crystal characteristics was discussed.
Keywords:
optical crystals; defect centers; laser
Available at various institutes of the ASCR
Preparation and characterzation of optical materials
Technology has been optimized to provide longer cylindrical parts of an optical crystal for laser applications. Specific optical characteristics along the crystals grown have been measured and ...
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