کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5026221 | 1470593 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Random lasers tuning by combining a dye-doped liquid crystal and CdS nanoparticles
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We report the development of LC (negative liquid crystal and mixing liquid crystals) random lasers doped with a gain medium and CdS nanoparticles. By performing frequency doubled 532Â nm Nd:YAG (yttrium aluminum garnet) laser as a function of excitation wavelength, we demonstrate laser action in a new category of materials, namely dye doped liquid crystal with semiconductor nanoparticles. The CdS nanoparticles prove to be perfect candidates for building, as shown, a series of laser systems. Lasing is presented in cells, freely suspended liquid crystal films. The optical emission properties are investigated in terms of spectral analysis, below and above lasing energy threshold behavior, emission efficiency, far field spatial laser modes intensity profiling, etc. As demonstrated, these DDLC random lasers with the CdS nanoparticles are very promising platforms for investigating the optical mechanism of cadmium sulfide.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - International Journal for Light and Electron Optics - Volume 134, April 2017, Pages 1-8
Journal: Optik - International Journal for Light and Electron Optics - Volume 134, April 2017, Pages 1-8
نویسندگان
Longwu Li,