Exceptional points in anisotropic photonic structures: from non-Hermitian physics to possible device applications

Exceptional points in anisotropic photonic structures: from non-Hermitian physics to possible device applications
复制标题

各向异性光子结构的特殊点:从非厄米物理到可能的设备应用

DOI:
10.1117/12.2260816
复制
发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Rüdiger Schmidt-Grund
Rüdiger Schmidt-Grund
中科院分区:
--
文献类型:
--
作者:
Marius Grundmann;Steffen Richter;Tom Michalsky;Chris Sturm;Jesús Zúñiga-Pérez;Rüdiger Schmidt-Grund

文献摘要

参考文献

相似文献

我们证明,例外点存在于完全透明的,光学“有效”的双轴,各向异性的微腔,制造使用单轴腔材料,其轴倾斜的布拉格反射镜生长方向。这类似于吸收双轴晶体中奇异(光学)轴的存在,但时间反演对称性的缺乏是由模式展宽介导的,即光子从原则上开放腔系统逃逸。因此,本征模通常是椭圆偏振的,并且在某些方向上预期完全圆偏振的本征模。通过几何和化学成分设计自由度,可以合理地设计这些手征模的光谱和角位置。可能的应用产生于使用这种方向的圆偏振发射,而不使用自旋注入或内部或外部磁场。此外,这种模式的激子的耦合,增加系统的振荡器强度,似乎是一个有前途的研究途径。
We demonstrate that exceptional points exist in fully transparent, optically ”effectively” biaxial, anisotropic micro-cavities, fabricated using an uniaxial cavity material with its axis inclined to the Bragg mirror growth direction. This is similar to the existence of singular (optic) axes in absorbing biaxial crystals, but the lack of time reversal symmetry is mediated by the mode broadening, i.e. the photon escape from the – in principle – open cavity system. As a consequence the eigenmodes are generally elliptically polarized, and completely circularly polarized eigenmodes are expected in certain directions. Via geometric and chemical composition design degrees of freedom, the spectral and angular position of these chiral modes can be rationally designed. Possible applications arise from the use of such directions for circularly polarized emission without the use of spin injection or internal or external magnetic fields. Also the coupling of such modes to excitons, adding oscillator strength to the system, seems a promising avenue of research.
DOI: 10.1002/pssr.201600295
发表时间: 2017-01
期刊: physica status solidi (RRL) – Rapid Research Letters
影响因子: --
作者:
M. Grundmann;C. Sturm;C. Kranert;S. Richter;R. Schmidt‐Grund;C. Deparis;J. Zúñiga-Pérez
通讯作者: M. Grundmann;C. Sturm;C. Kranert;S. Richter;R. Schmidt‐Grund;C. Deparis;J. Zúñiga-Pérez
赝晶 ZnO 基异质结构:从极性到所有半极性到非极性取向
DOI: --
发表时间: 2016
期刊:
影响因子: --
作者:
M. Grundmann;J. Zúñiga
通讯作者: J. Zúñiga
DOI: 10.1063/1.4937462
发表时间: 2015-12-07
影响因子: 4
作者:
Richter, Steffen;Michalsky, Tom;Schmidt-Grund, Ruediger
通讯作者: Schmidt-Grund, Ruediger
DOI: --
发表时间: --
期刊:
影响因子: --
作者:
W. Voigt
通讯作者: W. Voigt