| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Wavelength Variation of a Random Laser with Concentration of a Gain Material |
| CHEN Shu-Jing1, SHI Jin-Wei1, ZHAI Tian-Rui1, WANG Zhao-Na1, LIU Da-He1,2**, CHEN Xiao3
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1Applied Optics Beijing Area Major Laboratory, Department of Physics, Beijing Normal University, Beijing 100875
2Key Laboratory of Nondestructive Test (Ministry of Education), Nanchang Hang Kong University, Nanchang 330063
3College of Science, Minzu University of China, Beijing 100081
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| Cite this article: |
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CHEN Shu-Jing, SHI Jin-Wei, ZHAI Tian-Rui et al 2011 Chin. Phys. Lett. 28 104204 |
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Abstract The wavelength variation of a laser-dye-type random laser is observed experimentally. It is found that the emitting wavelength of a random laser changes with the change of concentration of the gain material. Also, the actual radiation wavelength is influenced by the pumping rate of the source, the cavity competition and the concentration of scatterers.
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| Keywords:
42.55.Zz
42.60.Da
42.25.Dd
78.40.Pg
78.55.Bq
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Received: 07 April 2011
Published: 28 September 2011
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