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Bichromatic coherent random lasing from dye-doped polymer stabilized blue phase liquid crystals controlled by pump light polarization
| Content Provider | Scilit |
|---|---|
| Author | Wang, Lei Wang, Meng Yang, Mingchao Shi, Li-Jie Deng, Luogen Yang, Huai |
| Copyright Year | 2016 |
| Description | Journal: Chinese Physics B In this paper, we investigate the bichromatic coherent random lasing actions from the dye-doped polymer stabilized blue phase liquid crystals. Two groups of lasing peaks, of which the full widith at half maximum is about 0.3 nm, are clearly observed. The shorter- and longer-wavelength modes are associated with the excitation of the single laser dye (DCM) monomers and dimers respectively. The experimental results show that the competition between the two groups of the lasing peaks can be controlled by varying the polarization of the pump light. When the polarization of the pump light is rotated from 0° to 90°, the intensity of the shorter-wavelength lasing peak group reduces while the intensity of the longer-wavelength lasing peak group increases. In addition, a red shift of the longer-wavelength modes is also observed and the physical mechanisms behind the red-shift phenomenon are discussed. |
| Related Links | http://iopscience.iop.org/article/10.1088/1674-1056/25/9/094217/pdf |
| ISSN | 16741056 |
| e-ISSN | 20583834 |
| DOI | 10.1088/1674-1056/25/9/094217 |
| Journal | Chinese Physics B |
| Issue Number | 9 |
| Volume Number | 25 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2016-08-30 |
| Access Restriction | Open |
| Subject Keyword | Journal: Chinese Physics B Liquid Crystals Random Lasing Coherent Random Dye Doped Bichromatic Coherent Polymer Stabilized Stabilized Blue Blue Phase |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy |
