Realizing arbitrary trapping potentials for light via direct laser writing of mirror surface profiles
Realizing arbitrary trapping potentials for light via direct laser writing of mirror surface profiles
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DOI：
10.1209/0295-5075/130/54001
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发表时间：
2020-06-01
期刊：
影响因子：
1.8
通讯作者：
Weitz, Martin
中科院分区：
文献类型：
--
作者：
Kurtscheid, Christian;Dung, David;Weitz, Martin
量子气体实验的多功能性极大地得益于应用可变电势的能力。在这里，我们描述了一种方法，它允许通过热诱导镜面微结构技术对光学谐振腔几何形状进行空间选择性变形来制备微腔光子的势能结构。我们研究了二维光子气体在波长尺度分离的由定制表面结构反射镜组成的充满染料的微腔中的热化。具体地说，我们描述了耦合双脊结构中热光子的空间再分布的测量，其中光子在空间分裂的基态形成玻色-爱因斯坦凝聚体，作为不同抽运几何的函数。
The versatility of quantum gas experiments greatly benefits from the ability to apply variable potentials. Here we describe a method which allows the preparation of potential structures for microcavity photons via spatially selective deformation of optical resonator geometries with a heat-induced mirror surface microstructuring technique. We investigate the thermalization of a two-dimensional photon gas in a dye-filled microcavity composed of the custom surface-structured mirrors at wavelength-scale separation. Specifically, we describe measurements of the spatial redistribution of thermal photons in a coupled double-ridge structure, where photons form a Bose-Einstein condensate in a spatially split ground state, as a function of different pumping geometries.