| Engineering quadratic nonlinear photonic crystals for frequency conversion of lasers | |
| Chen,Baoqin1; Hong,Lihong1; Hu,Chenyang2; Zhang,Chao2; Liu,Rongjuan2; Li,Zhiyuan1 | |
| 刊名 | Journal of optics
 |
| 2018-02-20 | |
| 卷号 | 20期号:3 |
| 关键词 | Quasi-phase matching Optical frequency conversion Nonlinear photonic crystals Second harmonic generation High-harmonic generation |
| ISSN号 | 2040-8978 |
| DOI | 10.1088/2040-8986/aaaa3a |
| 英文摘要 | Abstract nonlinear frequency conversion offers an effective way to extend the laser wavelength range. quadratic nonlinear photonic crystals (npcs) are artificial materials composed of domain-inversion structures whose sign of nonlinear coefficients are modulated with desire to implement quasi-phase matching (qpm) required for nonlinear frequency conversion. these structures can offer various reciprocal lattice vectors (rlvs) to compensate the phase-mismatching during the quadratic nonlinear optical processes, including second-harmonic generation (shg), sum-frequency generation and the cascaded third-harmonic generation (thg). the modulation pattern of the nonlinear coefficients is flexible, which can be one-dimensional or two-dimensional (2d), be periodic, quasi-periodic, aperiodic, chirped, or super-periodic. as a result, these npcs offer very flexible qpm scheme to satisfy various nonlinear optics and laser frequency conversion problems via design of the modulation patterns and rlv spectra. in particular, we introduce the electric poling technique for fabricating qpm structures, a simple effective nonlinear coefficient model for efficiently and precisely evaluating the performance of qpm structures, the concept of super-qpm and super-periodically poled lithium niobate for finely tuning nonlinear optical interactions, the design of 2d ellipse qpm npc structures enabling continuous tunability of shg in a broad bandwidth by simply changing the transport direction of pump light, and chirped qpm structures that exhibit broadband rlvs and allow for simultaneous radiation of broadband shg, thg, hhg and thus coherent white laser from a single crystal. all these technical, theoretical, and physical studies on qpm npcs can help to gain a deeper insight on the mechanisms, approaches, and routes for flexibly controlling the interaction of lasers with various qpm npcs for high-efficiency frequency conversion and creation of novel lasers. |
| 语种 | 英语 |
| 出版者 | IOP Publishing |
| WOS记录号 | IOP:2040-8978-20-3-AAAA3A |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2374012 |
| 专题 | 物理研究所 |
| 作者单位 | 1.School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510640, People’s Republic of China 2.Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100190, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Chen,Baoqin,Hong,Lihong,Hu,Chenyang,et al. Engineering quadratic nonlinear photonic crystals for frequency conversion of lasers[J]. Journal of optics,2018,20(3). |
| APA | Chen,Baoqin,Hong,Lihong,Hu,Chenyang,Zhang,Chao,Liu,Rongjuan,&Li,Zhiyuan.(2018).Engineering quadratic nonlinear photonic crystals for frequency conversion of lasers.Journal of optics,20(3). |
| MLA | Chen,Baoqin,et al."Engineering quadratic nonlinear photonic crystals for frequency conversion of lasers".Journal of optics 20.3(2018). |
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