Enhanced stimulated emission in ZnO thin films using microdisk top-down structuring

2014 ◽  
Vol 104 (18) ◽  
pp. 181104 ◽  
Author(s):  
K. Nomenyo ◽  
A.-S. Gadallah ◽  
S. Kostcheev ◽  
D. J. Rogers ◽  
G. Lérondel
Keyword(s):  
Thin Films ◽  
Stimulated Emission ◽  
Zno Thin Films ◽  
Top Down

Low-Threshold Stimulated Emission in ZnO Thin Films Grown by Atomic Layer Deposition

2008 ◽  
Vol 14 (4) ◽  
pp. 1053-1057 ◽  
Author(s):  
Hsing-Chao Chen ◽  
Miin-Jang Chen ◽  
Mong-Kai Wu ◽  
Yung-Chen Cheng ◽  
Feng-Yu Tsai
Keyword(s):  
Thin Films ◽  
Atomic Layer Deposition ◽  
Atomic Layer ◽  
Stimulated Emission ◽  
Zno Thin Films ◽  
Layer Deposition ◽  
Low Threshold

Ultraviolet stimulated emission from bulk and polycrystalline ZnO thin films with varying grain sizes

2003 ◽  
Vol 340-342 ◽  
pp. 245-249 ◽  
Author(s):  
G. Tobin ◽  
E. McGlynn ◽  
M.O. Henry ◽  
J.P. Mosnier ◽  
J.G. Lunney ◽  
...  
Keyword(s):  
Thin Films ◽  
Stimulated Emission ◽  
Zno Thin Films ◽  
Grain Sizes

scholarly journals Stimulated emission and time-resolved photoluminescence in rf-sputtered ZnO thin films

2004 ◽  
Vol 84 (17) ◽  
pp. 3223-3225 ◽  
Author(s):  
Ü. Özgür ◽  
A. Teke ◽  
C. Liu ◽  
S.-J. Cho ◽  
H. Morkoç ◽  
...  
Keyword(s):  
Thin Films ◽  
Stimulated Emission ◽  
Zno Thin Films ◽  
Time Resolved ◽  
Time Resolved Photoluminescence

scholarly journals Ultraviolet Stimulated Emission from Sol-Gel Spin Coated ZnO Thin Films

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Ahmed S. Razeen ◽  
A.-S. Gadallah ◽  
M. M. El-Nahass
Keyword(s):  
Thin Films ◽  
Quantum Efficiency ◽  
Spin Coating ◽  
Sol Gel ◽  
Optical Excitation ◽  
Stimulated Emission ◽  
Zno Thin Films ◽  
Input Output ◽  
Output Intensity ◽  
Intensity Dependence

Low cost ultraviolet stimulated emission has been generated using optical excitation of ZnO thin films deposited by sol-gel spin coating on n+As-doped100Si-substrate. The number of deposited layers and the heat treatment have been investigated to obtain a film that can generate stimulated emission under optical excitation. The optimum condition for preparation of the film has been presented. X-ray diffraction and scanning electron microscope have been used for structural and morphological investigations. Input-output intensity dependence and spectral width, peak emission wavelength, and the quantum efficiency versus the pump intensity have been presented. A quantum efficiency of about 24.2% has been reported, a power exponent higher than 8 has been obtained in input-output intensity dependence, and a threshold of about 23 Mw/cm2has been evaluated for the samples. The mechanism by which stimulated emission occurs has been discussed. The results show that sol-gel spin coating is a promising method for generating ultraviolet stimulated emission from ZnO thin films.

Effect of Ag doping on the properties of ZnO thin films for UV stimulated emission

2018 ◽  
Vol 538 ◽  
pp. 131-137 ◽  
Author(s):  
Ahmed S. Razeen ◽  
A.-S. Gadallah ◽  
M.M. El-Nahass
Keyword(s):  
Thin Films ◽  
Stimulated Emission ◽  
Zno Thin Films ◽  
Ag Doping

Surface-emitting stimulated emission in high-quality ZnO thin films

2004 ◽  
Vol 96 (7) ◽  
pp. 3733-3736 ◽  
Author(s):  
X. Q. Zhang ◽  
Ikuo Suemune ◽  
H. Kumano ◽  
J. Wang ◽  
S. H. Huang
Keyword(s):  
Thin Films ◽  
Stimulated Emission ◽  
Zno Thin Films ◽  
High Quality

scholarly journals Stimulated emission from ZnO thin films with high optical gain and low loss

2013 ◽  
Vol 102 (17) ◽  
pp. 171105 ◽  
Author(s):  
A.-S. Gadallah ◽  
K. Nomenyo ◽  
C. Couteau ◽  
D. J. Rogers ◽  
G. Lérondel
Keyword(s):  
Thin Films ◽  
Optical Gain ◽  
Stimulated Emission ◽  
Zno Thin Films ◽  
Low Loss
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