Nonlinear optics and coherent intersubband physics of cubic GaN/Al(Ga)N heterostructures (B02)

立方GaN/Al(Ga)N异质结构的非线性光学和相干子带间物理(B02)

• 批准号: 251205338
• 金额: --
• 依托单位: Lehrstuhl für Experimentelle Physik II
• 依托单位国家: 德国
• 项目类别: CRC/Transregios
• 财政年份: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/251205338?language=en
• 关键词: Nonlinear; optics; coherent; intersubband; physics

Project B02 continues with the fabrication of cubic GaN/Al(Ga)N heterostructures and the investigation of their ultrafast and/or nonlinear optical properties. In the second period, we aim to enlarge and utilize the resonant nonlinearity associated with near-infrared intersubband transitions in quantum wells. This will be achieved by stronger doping and growth of structures with spectrally narrower resonances. In addition, we will investigate nonlinear metasurfaces formed by depositing antenna structures resonant to the intersubband transitions. Such structures massively enhance the optical nonlinearity and enable nonlinear optical frequency mixing with relaxed phase-matching conditions.

B02项目继续进行立方GaN/Al(Ga)N异质结的制备及其超快和/或非线性光学性质的研究。在第二阶段，我们的目标是放大和利用量子阱中与近红外子带间跃迁相关的共振非线性。这将通过更强的掺杂和具有光谱更窄共振的结构的生长来实现。此外，我们还将研究通过沉积与子带间跃迁共振的天线结构而形成的非线性亚表面。这种结构极大地增强了光学非线性，使非线性光学混频具有宽松的相位匹配条件。