Random lasing in dye-doped chiral nematic liquid crystal
Random lasing in dye-doped chiral nematic liquid crystal
复制标题
染料掺杂手性向列液晶中的随机激光
DOI:
10.1016/j.ijleo.2019.163616
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发表时间:
2020-02
期刊:
影响因子:
3.1
通讯作者:
Qin Dai
中科院分区:
文献类型:
--
作者:
Rina Wu;Jiaqi Lu;Xing Wang;Fan Yang;Yeqiu Li;Qin Dai
Random laser action is observed in the PM597 dye-doped chiral nematic liquid crystal (DDCLC) cells. A focal conic texture of chiral nematic liquid crystal (CLC) with many micro-domains is achieved in the cell without rubbing treatment. An Nd:YAG pulsed solid-state laser with a wavelength of 532 nm is employed as a pump source. Discrete and sharp random lasers with a line-width of 0.3 nm and wavelength range of 570–590 nm are obtained. The pump threshold energy of a random laser significantly depends on the cell thickness. The DDCLC cell with a thickness of 80 μm shows the lowest threshold value Ethof 7.6μJ, whereas the 10 μm DDCLC cell presents the highest Eth of 19.6μJ. The lower Eth is attributed to a denser micro-domain distribution that provides a stronger photon scattering at a certain pump depth. The random laser emission is shut down when the temperature reaches 61 °C.
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影响因子:
2.4
作者:
R. Wu;Yong Li;Jie Wu;Ji Ma;Q. Dai
通讯作者:
R. Wu;Yong Li;Jie Wu;Ji Ma;Q. Dai
DOI:
10.1140/epjb/e2013-30822-0
发表时间:
2013-03
期刊:
The European Physical Journal B
影响因子:
--
作者:
Longwu Li;L. Deng
通讯作者:
Longwu Li;L. Deng
影响因子:
64.8
作者:
N. Lawandy;R. Balachandran;A. Gomes;E. Sauvain
通讯作者:
N. Lawandy;R. Balachandran;A. Gomes;E. Sauvain
影响因子:
1.1
作者:
V. Letokhov
通讯作者:
V. Letokhov
影响因子:
3.8
作者:
Strangi, G.;Ferjani, S.;Bartolino, R.
通讯作者:
Bartolino, R.