Homogeneous Linewidth Determination for Disordered Active Media from Stimulated Emission Spectra of Internal Modes

1969 ◽  
Vol 35 (2) ◽  
pp. K111-K113 ◽  
Author(s):  
A. D. Manuilskii ◽  
S. G. Odulov ◽  
M. S. Soskin
2000 ◽  
Vol 77 (23) ◽  
pp. 3758-3760 ◽  
Author(s):  
Chii-Chang Chen ◽  
Hui-Wen Chuang ◽  
Gou-Chung Chi ◽  
Chang-Cheng Chuo ◽  
Jen-Inn Chyi

1973 ◽  
Vol 3 (1) ◽  
pp. 43-45
Author(s):  
L G Pikulik ◽  
L F Gladchenko ◽  
A D Das'ko

1996 ◽  
Vol 261 (4-5) ◽  
pp. 389-395 ◽  
Author(s):  
Gilad Haran ◽  
Klaas Wynne ◽  
Aihua Xie ◽  
Qin He ◽  
Mark Chance ◽  
...  

1972 ◽  
Vol 43 (6) ◽  
pp. 2805-2810 ◽  
Author(s):  
J. L. Shay ◽  
L. M. Schiavone ◽  
E. Buehler ◽  
J. H. Wernick

1977 ◽  
Vol 7 (7) ◽  
pp. 887-889
Author(s):  
S B Kormer ◽  
G G Kochemasov ◽  
V D Nikolaev ◽  
V D Urlin

2011 ◽  
Vol 25 (09) ◽  
pp. 685-696 ◽  
Author(s):  
A. CHOUBEY ◽  
S. SOM ◽  
R. KUMARI ◽  
S. K. SHARMA

The 0.1 mol% europium ( Eu 3+) activated lanthanum oxychloride nanophosphor was prepared by the liquid-phase method. The X-ray diffraction analysis of the prepared compound exhibits the tetragonal structure having the particles size in the range of 18–21 nm. The band gap of Eu 3+ doped LaOCl phosphor was found to be around 5.2 eV using absorption and diffuse reflectance measurements. The photoluminescence (PL) emission spectra show the bright emission in orange–red region from 580 nm to 630 nm. The most intense emission peak at 621 nm was due to transition in energy levels 5 D 0 → 7 F 2 of Eu 3+ ions. The absorption and stimulated emission cross-section of the intense peak were found to be 4.135 × 10-20 cm2 and 8.9 × 10-20 cm2 respectively. The wide band gap and high stimulated emission cross-section of prepared nanophosphor makes its possible applications as red emitting phosphor in display devices and laser system.


1974 ◽  
Vol 27 (3) ◽  
pp. 425-429 ◽  
Author(s):  
B.S. Neporent ◽  
V.B. Shilov ◽  
G.V. Lukomsky ◽  
A.G. Spiro

1996 ◽  
Vol 449 ◽  
Author(s):  
D. A. S. Loeber ◽  
N. G. Anderson ◽  
J. M. Redwing ◽  
J. S. Flynn ◽  
G. M. Smith ◽  
...  

ABSTRACTStimulated emission characteristics are examined for GaN-AlGaN separate-confinement quantum-well heterostructures grown by MOVPE on 4H-SiC substrates. We specifically focus on comparison of structures with different quantum well active region designs. Polarization resolved edge emission spectra and stimulated emission thresholds are obtained under optical pumping using a stripe excitation geometry. Stimulated emission characteristics are studied as a function of the number of quantum wells in the structure, and are correlated with surface photoluminescence properties. We find reduced stimulated emission thresholds and increased surface photoluminescence intensities as the number of quantum wells is reduced, with the best results obtained for a single-quantum-well structure. These results should provide useful information for the design of GaN-based quantum well lasers.


Sign in / Sign up

Export Citation Format

Share Document