KrF laser system with a wide range of wavelength tuning

2010 ◽  
Author(s):  
Yu. Panchenko ◽  
V. Dudarev ◽  
I. Konovalov ◽  
V. Losev ◽  
A. Pavlinsky ◽  
...  
Keyword(s):  
Laser System ◽  
Wavelength Tuning ◽  
Wide Range ◽  
Krf Laser

scholarly journals The "Lung": a software-controlled air accumulator for quasi-continuous multi-point measurement of agricultural greenhouse gases

2011 ◽  
Vol 4 (10) ◽  
pp. 2293-2303 ◽  
Author(s):  
R. J. Martin ◽  
A. M. Bromley ◽  
M. J. Harvey ◽  
R. C. Moss ◽  
E. Pattey ◽  
...  
Keyword(s):  
Sequential Analysis ◽  
Laser System ◽  
N2o Emissions ◽  
Discrete Sample ◽  
Measuring Surface ◽  
Wide Range ◽  
Current Design ◽  
Tuneable Diode Laser ◽  
N2o Fluxes ◽  
Continuous Field

Abstract. We describe the design and testing of a flexible bag ("Lung") accumulator attached to a gas chromatographic (GC) analyzer capable of measuring surface-atmosphere greenhouse gas exchange fluxes in a wide range of environmental/agricultural settings. In the design presented here, the Lung can collect up to three gas samples concurrently, each accumulated into a Tedlar bag over a period of 20 min or longer. Toggling collection between 2 sets of 3 bags enables quasi-continuous collection with sequential analysis and discarding of sample residues. The Lung thus provides a flexible "front end" collection system for interfacing to a GC or alternative analyzer and has been used in 2 main types of application. Firstly, it has been applied to micrometeorological assessment of paddock-scale N2O fluxes, discussed here. Secondly, it has been used for the automation of concurrent emission assessment from three sheep housed in metabolic crates with gas tracer addition and sampling multiplexed to a single GC. The Lung allows the same GC equipment used in laboratory discrete sample analysis to be deployed for continuous field measurement. Continuity of measurement enables spatially-averaged N2O fluxes in particular to be determined with greater accuracy, given the highly heterogeneous and episodic nature of N2O emissions. We present a detailed evaluation of the micrometeorological flux estimation alongside an independent tuneable diode laser system, reporting excellent agreement between flux estimates based on downwind vertical concentration differences. Whilst the current design is based around triplet bag sets, the basic design could be scaled up to a larger number of inlets or bags and less frequent analysis (longer accumulation times) where a greater number of sampling points are required.

scholarly journals Active Stabilization of the Beam Pointing of a High- Power KrF Laser System

2015 ◽  
Vol 22 (1) ◽  
pp. 165-172 ◽  
Author(s):  
A. Barna ◽  
I. B. Földes ◽  
J. Bohus ◽  
S. Szatmári
Keyword(s):  
High Power ◽  
Laser System ◽  
Spot Size ◽  
Electric Signal ◽  
Simple Arrangement ◽  
Krf Laser ◽  
Active Stabilization ◽  
Directional Change ◽  
Position Sensitive Detectors

Abstract An active beam-pointing stabilization system has been developed for a high-power KrF laser system to eliminate the long-term drift of the directional change of the beam in order to have a stable focusing to a high intensity. The control of the beam direction was achieved by a motor-driven mirror activated by an electric signal obtained by monitoring the position of the focus of the output beam. Instead of large sized UV-sensitive position sensitive detectors a simple arrangement with scatter plates and photodiodes are used to measure the directionality of the beam. After the beam stabilization the long-term residual deviation of the laser shots is ~14 μrad, which is comparable to the shot-to-shot variation of the beam (~12 μrad). This deviation is small enough to keep the focal spot size in a micrometer range when tightly focusing the beam using off-axis parabolic mirrors.

Electrically triggered multimodule KrF laser system with narrow‐linewidth output

1983 ◽  
Vol 54 (7) ◽  
pp. 845-852 ◽  
Author(s):  
D. C. D. McKen ◽  
R. Fedosejevs ◽  
M. Arnfield ◽  
I. V. Tomov ◽  
C. Domier ◽  
...  
Keyword(s):  
Laser System ◽  
Narrow Linewidth ◽  
Krf Laser

One Meter KrF Laser System

1977 ◽  
Author(s):  
J. C. Hsia ◽  
J. H. Jacob ◽  
J. A. Mangano ◽  
M. Rokni
Keyword(s):  
Laser System ◽  
Krf Laser

Electron-beam-pumped high-repetition-rate KrF laser system

2000 ◽  
Author(s):  
Eiichi Takahashi ◽  
Isao Okuda ◽  
Yuji Matsumoto ◽  
Isao Matsushima ◽  
Susumu Kato ◽  
...  
Keyword(s):  
Electron Beam ◽  
Repetition Rate ◽  
Laser System ◽  
High Repetition Rate ◽  
High Repetition ◽  
Krf Laser

The design of high-power multistage KrF laser system "GARPUN"

2005 ◽  
Author(s):  
N.G. Basov ◽  
V.G. Bakaev ◽  
G.E. Metreveli ◽  
G.V. Sychugov ◽  
A.D. Vadkovskii ◽  
...  
Keyword(s):  
High Power ◽  
Laser System ◽  
Krf Laser

scholarly journals Development of a high-power KrF laser system, ASHURA

1989 ◽  
Vol 7 (3) ◽  
pp. 383-392 ◽  
Author(s):  
Y. Owadano ◽  
I. Okuda ◽  
Y. Matsumoto ◽  
M. Tanimoto ◽  
T. Tomie ◽  
...  
Keyword(s):  
Power Density ◽  
High Power ◽  
Present Status ◽  
Laser System ◽  
Maximum Power ◽  
Main Amplifier ◽  
Krf Laser ◽  
Wall Plug Efficiency ◽  
Time Pulse

The present status of the development of a high-power KrF laser system, Ashura, is described. The main amplifier has generated 710 J (95 ns) at the pumping density of 1·lMW/cm3 with the wall plug efficiency of 2·0%. Maximum power of 9·0 GW (200 J/22 ns) per beam has been obtained from the beam lines of six-time pulse multiplexing. Power density of 1 × 1014 W/cm2 has been achieved on target with a 10−6 pre-pulse.

High-power subpicosecond KrF laser system

1986 ◽  
Author(s):  
I. A. McIntyre ◽  
A. P. Schwarzenbach ◽  
T. S. Luk ◽  
A. McPherson ◽  
K. Boyer ◽  
...  
Keyword(s):  
High Power ◽  
Laser System ◽  
Krf Laser

scholarly journals Computer Control of the Spectral Composition of the Powerful Laser System Irradiation with a Wide Range of Laser Transitions on Metal Vapors

2016 ◽  
Vol 79 ◽  
pp. 01003
Author(s):  
Anatoly Soldatov ◽  
Bogdan Doroshenko ◽  
Ivan Kostadinov ◽  
Yury Polunin ◽  
Nikola Sabotinov ◽  
...  
Keyword(s):  
Computer Control ◽  
Laser System ◽  
Spectral Composition ◽  
Powerful Laser ◽  
Metal Vapors ◽  
Wide Range
Sign in / Sign up

Export Citation Format

Share Document