Submillimeter laser action of CW optically pumped CF<inf>3</inf>Br

1979 ◽  
Vol 15 (10) ◽  
pp. 1088-1090 ◽  
Author(s):  
J. Pontnau ◽  
J.-M. Lourtioz ◽  
C. Meyer
Keyword(s):  
Laser Action ◽  
Optically Pumped ◽  
Submillimeter Laser

Submillimeter laser action of CW optically pumped CF2Cl2 (Fluorocarbon 12)

1981 ◽  
Vol 2 (1) ◽  
pp. 49-63 ◽  
Author(s):  
J-M. Lourtioz ◽  
J. Pontnau ◽  
M. Morillon-Chapey ◽  
J-C. Deroche
Keyword(s):  
Laser Action ◽  
Optically Pumped ◽  
Submillimeter Laser

scholarly journals Optically Pumped Intensive Light Amplification from a Blue Oligomer

Polymers ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 1534 ◽  
Author(s):  
Aljaafreh ◽  
Prasad ◽  
AlSalhi ◽  
Alahmed ◽  
M. Al-Mogren
Keyword(s):  
Self Assembly ◽  
High Efficiency ◽  
Laser Action ◽  
Pump Energy ◽  
Optically Pumped ◽  
Time Resolved ◽  
Protic Solvents ◽  
Light Amplification ◽  
Wide Range ◽  
The Fourier Transform

We demonstrated the time-resolved dynamics of laser action from the conductive oligomer (CO) 1,4-Bis(9-ethyl-3-carbazo-vinylene)-9,9-dihexyl-fluorene (BECV-DHF). Absorption and fluorescence spectra were studied for BECV-DHF in different solvents under a wide range of concentrations. The Fourier-transform infrared spectroscopy (FTIR) spectrum was measured using simulation and experiments. The Ultraviolet-Visible (UV-VIS) spectra of the BECV-DHF were simulated in two different solutions. This CO formed a dimer and had two vibration bands in nonpolar solvents, partially dissolved in polar protic solvents, and created an H-type aggregate in polar aprotic solvents. BECV-DHF produced amplified spontaneous emission (ASE) at 464 nm in many solvents. The high efficiency of ASE is due to the waveguiding and self-assembly nature of the oligomer, which is very rare for optically pumped systems. However, BECV-DHF did not produce ASE in polar protic solvents. BECV-DHF produced ASE in both longitudinal and transverse pumping, and the full-width half maximum (FWHM) was 4 nm and 8 nm respectively for different solvents, such as toluene and acetone. The CO had a very low threshold pump energy (~0.5 mJ). The ASE efficiency was approximately 20%. The time-resolved spectroscopy (TRS) studies showed a temporal Gaussian-shaped ASE output from this CO. BECV-DHF shows remarkably high stability compare to the conjugated polymer (CP) PFO-co-pX.

Optically pumped laser action in dideuteroacetylene

1978 ◽  
Vol 26 (3) ◽  
pp. 422-426 ◽  
Author(s):  
H.N. Rutt ◽  
J.M. Green
Keyword(s):  
Laser Action ◽  
Optically Pumped ◽  
Optically Pumped Laser

LASER ACTION IN OPTICALLY‐PUMPED CN

1966 ◽  
Vol 9 (6) ◽  
pp. 230-232 ◽  
Author(s):  
M. A. Pollack
Keyword(s):  
Laser Action ◽  
Optically Pumped
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