Effect of flash lamp ignition technique on the energy characteristics of dye lasers

1980 ◽  
Vol 32 (4) ◽  
pp. 329-332 ◽  
Author(s):  
Yu. G. Basov ◽  
T. I. Mikhalina ◽  
V. G. Nikiforov ◽  
A. I. Sopin
Keyword(s):  
Flash Lamp ◽  
Dye Lasers ◽  
Energy Characteristics

Shock‐wave termination of laser action in coaxial flash lamp dye lasers

1973 ◽  
Vol 22 (10) ◽  
pp. 520-521 ◽  
Author(s):  
T.F. Ewanizky ◽  
R.H. Wright ◽  
H.H. Theissing
Keyword(s):  
Shock Wave ◽  
Laser Action ◽  
Flash Lamp ◽  
Dye Lasers ◽  
Coaxial Flash Lamp

INK-18/150 coaxial flash lamp for pumping dye lasers

1979 ◽  
Vol 31 (2) ◽  
pp. 1053-1054
Author(s):  
Yu. G. Basov ◽  
S. A. Boldyrev ◽  
A. I. Zhnikrup
Keyword(s):  
Flash Lamp ◽  
Dye Lasers ◽  
Coaxial Flash Lamp

Über den Schwellenwert der Pumpenergie von Flüssigkeitslasern im quasistationären Betrieb

1972 ◽  
Vol 27 (11) ◽  
pp. 1685-1686 ◽  
Author(s):  
I. Ketskeméty ◽  
L. Kozma
Keyword(s):  
Pump Intensity ◽  
Flash Lamp ◽  
Dye Lasers ◽  
Laser Parameters ◽  
Fluorescence Characteristics ◽  
Liquid Solutions

Abstract Threshold Pump Intensity of Flash Lamp Pumped Liquid Lasers Laser parameters of flash lamp pumped dye lasers are interpreted on the base of a simplified term scheme. The obtained formular contain the fluorescence characteristics of the liquid solutions.

Helicopter main reduction planetary gear fault diagnosis method based on SVDD

2020 ◽  
Vol 64 (1-4) ◽  
pp. 137-145
Author(s):  
Yubin Xia ◽  
Dakai Liang ◽  
Guo Zheng ◽  
Jingling Wang ◽  
Jie Zeng
Keyword(s):  
Fault Diagnosis ◽  
Planetary Gear ◽  
Gaussian Kernel ◽  
Support Vector ◽  
Support Vector Data Description ◽  
Vector Data ◽  
Energy Characteristics ◽  
Gear Fault ◽  
Channel Information ◽  
Diagnosis Method

Aiming at the irregularity of the fault characteristics of the helicopter main reducer planetary gear, a fault diagnosis method based on support vector data description (SVDD) is proposed. The working condition of the helicopter is complex and changeable, and the fault characteristics of the planetary gear also show irregularity with the change of working conditions. It is impossible to diagnose the fault by the regularity of a single fault feature; so a method of SVDD based on Gaussian kernel function is used. By connecting the energy characteristics and fault characteristics of the helicopter main reducer running state signal and performing vector quantization, the planetary gear of the helicopter main reducer is characterized, and simultaneously couple the multi-channel information, which can accurately characterize the operational state of the planetary gear’s state.

Improved Sol-Gel Materials for Efficient Solid State Dye Lasers

1993 ◽  
Vol 329 ◽  
Author(s):  
Michael Canva ◽  
Patrick Georges ◽  
Jean-Fran^ois Perelgritz ◽  
Alain Brun ◽  
Fréddric Chaput ◽  
...  
Keyword(s):  
Solid State ◽  
Physical Properties ◽  
Room Temperature ◽  
Sol Gel ◽  
Tunable Lasers ◽  
Optical Quality ◽  
Dye Lasers ◽  
Laser Dyes ◽  
Host Matrix ◽  
Host Matrices

AbstractPhotoresistant laser dyes were trapped in silica based xerogel host matrices to obtain solid state tunable lasers. For this purpose very dense xerogel samples with improved chemical and physical properties were prepared at room temperature by the sol-gel technology. The as-prepared materials were polished to obtain optical quality surfaces and were used as new lasing media.Lasing action of such different dyes as rhodamine, perylene and pyrromethene doping dense sol-gel matrices was demonstrated. Efficiencies of 30 % or lifetimes of more than 100,000 shots were achieved with different new ≤dye dopant/host matrix≥ couples. Their different performances are reviewed and discussed.

Sign in / Sign up

Export Citation Format

Share Document