Waveguided nematic liquid crystal random lasers
In waveguided nematic liquid crystal random lasers (NLCRLs), we realize polarized random laser (RL) emission and discover that the waveguide effect reduces the transmission loss of the RL whose polarization is parallel to the liquid crystal molecules (LCMs). Compared with the traditional liquid crys...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2021-08-01
|
| Series: | Nanophotonics |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/nanoph-2021-0353 |
| _version_ | 1818688850461982720 |
|---|---|
| author | Huang Yunxi Zhang Xiaojuan Yu Benli Ma Jiajun Xie Kang Cheng Sheng Zhang Junxi Hu Zhijia |
| author_facet | Huang Yunxi Zhang Xiaojuan Yu Benli Ma Jiajun Xie Kang Cheng Sheng Zhang Junxi Hu Zhijia |
| author_sort | Huang Yunxi |
| collection | DOAJ |
| description | In waveguided nematic liquid crystal random lasers (NLCRLs), we realize polarized random laser (RL) emission and discover that the waveguide effect reduces the transmission loss of the RL whose polarization is parallel to the liquid crystal molecules (LCMs). Compared with the traditional liquid crystal random lasers, the waveguide NLCRLs can achieve the regulation of RLs strength, polarization, and wavelength in the same structure. The electric field can drive the rotation of LCMs to control the RL polarization and intensity. The drop of horizontal polarization laser and the increase of vertical polarization laser prove the role of the waveguide effect. In addition, the disorder of the waveguided NLCRLs is highly sensitive to temperature, which makes it easy to control the wavelength and intensity of the RL. As the temperature rises, the waveguide effect is weakened, resulting in a weakening of the restriction along liquid crystal (LC) cell normal direction. The reduced laser intensity verifies the role of the waveguide effect. |
| first_indexed | 2024-12-17T12:00:46Z |
| format | Article |
| id | doaj.art-1314949b3fbc43db89cb3da6d1b4665a |
| institution | Directory Open Access Journal |
| issn | 2192-8614 |
| language | English |
| last_indexed | 2024-12-17T12:00:46Z |
| publishDate | 2021-08-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj.art-1314949b3fbc43db89cb3da6d1b4665a2022-12-21T21:49:50ZengDe GruyterNanophotonics2192-86142021-08-0110133541354710.1515/nanoph-2021-0353Waveguided nematic liquid crystal random lasersHuang Yunxi0Zhang Xiaojuan1Yu Benli2Ma Jiajun3Xie Kang4Cheng Sheng5Zhang Junxi6Hu Zhijia7School of Instrument Science and Opto-Electronics Engineering, Laboratory of Optical Fibers and Micro-Nano Photonics, Hefei University of Technology, Hefei, 230009, Anhui, P. R. ChinaInformation Materials and Intelligent Sensing Laboratory of Anhui Province, Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education, School of Physics and Materials Science, Anhui University, Hefei, 230601, Anhui, P. R. ChinaInformation Materials and Intelligent Sensing Laboratory of Anhui Province, Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education, School of Physics and Materials Science, Anhui University, Hefei, 230601, Anhui, P. R. ChinaState Key Laboratory of Environmental Friendly Energy Materials, Southwest University of Science and Technology, Mianyang, 621000, Sichuan, P. R. ChinaSchool of Opto-Electronic Engineering, Zaozhuang University, Zaozhuang, 277160, Shandong, P. R. ChinaInstrumental Analysis Center, Hefei University of Technology, Hefei, 230009, Anhui, P. R. ChinaSchool of Instrument Science and Opto-Electronics Engineering, Laboratory of Optical Fibers and Micro-Nano Photonics, Hefei University of Technology, Hefei, 230009, Anhui, P. R. ChinaSchool of Instrument Science and Opto-Electronics Engineering, Laboratory of Optical Fibers and Micro-Nano Photonics, Hefei University of Technology, Hefei, 230009, Anhui, P. R. ChinaIn waveguided nematic liquid crystal random lasers (NLCRLs), we realize polarized random laser (RL) emission and discover that the waveguide effect reduces the transmission loss of the RL whose polarization is parallel to the liquid crystal molecules (LCMs). Compared with the traditional liquid crystal random lasers, the waveguide NLCRLs can achieve the regulation of RLs strength, polarization, and wavelength in the same structure. The electric field can drive the rotation of LCMs to control the RL polarization and intensity. The drop of horizontal polarization laser and the increase of vertical polarization laser prove the role of the waveguide effect. In addition, the disorder of the waveguided NLCRLs is highly sensitive to temperature, which makes it easy to control the wavelength and intensity of the RL. As the temperature rises, the waveguide effect is weakened, resulting in a weakening of the restriction along liquid crystal (LC) cell normal direction. The reduced laser intensity verifies the role of the waveguide effect.https://doi.org/10.1515/nanoph-2021-0353disordernematicliquid crystalpolarization directionsrandom laserwaveguide effect |
| spellingShingle | Huang Yunxi Zhang Xiaojuan Yu Benli Ma Jiajun Xie Kang Cheng Sheng Zhang Junxi Hu Zhijia Waveguided nematic liquid crystal random lasers Nanophotonics disorder nematicliquid crystal polarization directions random laser waveguide effect |
| title | Waveguided nematic liquid crystal random lasers |
| title_full | Waveguided nematic liquid crystal random lasers |
| title_fullStr | Waveguided nematic liquid crystal random lasers |
| title_full_unstemmed | Waveguided nematic liquid crystal random lasers |
| title_short | Waveguided nematic liquid crystal random lasers |
| title_sort | waveguided nematic liquid crystal random lasers |
| topic | disorder nematicliquid crystal polarization directions random laser waveguide effect |
| url | https://doi.org/10.1515/nanoph-2021-0353 |
| work_keys_str_mv | AT huangyunxi waveguidednematicliquidcrystalrandomlasers AT zhangxiaojuan waveguidednematicliquidcrystalrandomlasers AT yubenli waveguidednematicliquidcrystalrandomlasers AT majiajun waveguidednematicliquidcrystalrandomlasers AT xiekang waveguidednematicliquidcrystalrandomlasers AT chengsheng waveguidednematicliquidcrystalrandomlasers AT zhangjunxi waveguidednematicliquidcrystalrandomlasers AT huzhijia waveguidednematicliquidcrystalrandomlasers |