Quantum Photonic Microscope

量子光子显微镜

• 批准号: 511813744
• 金额: --
• 依托单位: Carl von Ossietzky Universität Oldenburg
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2022
• 资助国家: 德国
• 起止时间: 2021-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/511813744?language=en
• 关键词: Quantum; Photonic; Microscope

The Quantum Photonic Microscope is an autonomous unit, which allows the investigation of quantum optical phenomena of light-matter coupled quantum materials and cavity quantum electrodynamic systems, including single quantum dots and atomically thin crystals. It consists of a low vibration, helium-free cryostat, reaching a base cryogenic-temperature of 4K to host the sample. The cryostat will allow for optical excitation and detection in free space with sub-micrometer resolution. Optical excitation of the samples is facilitated by a frequency tunable, mode-locked hands-off laser system. Since we target the investigation of systems with resonant wavelengths in the spectral range between 680–1000 nm, this laser system is composed of a pump laser, and a Titanium-Sapphire Oscillator. The system is complemented by a measurement unit, which is composed of a standard spectrograph, which is equipped with a high sensitivity Si CCD detector, and a set of high sensitivity, low time-jitter single-photon detectors. The characteristic processes of quantum coherence in the samples which will be investigated on the sub 100 ps scale, calling for single photon detectors with a time-jitter, which is smaller than 50 ps throughout the spectral window of interest.

量子光子显微镜是一个自主的单位，它允许调查光物质耦合量子材料和腔量子电动力学系统的量子光学现象，包括单量子点和原子薄晶体。它由一个低振动、无氦低温恒温器组成，达到4K的基本低温温度以容纳样品。低温恒温器将允许在自由空间中以亚微米分辨率进行光学激发和检测。样品的光激发是由一个频率可调，锁模手的激光系统。由于我们的目标是研究共振波长在680-1000 nm之间的光谱范围内的系统，因此该激光系统由泵浦激光器和钛-蓝宝石振荡器组成。该系统是由一个测量单元，这是由一个标准的光谱仪，它配备了一个高灵敏度的硅CCD探测器，和一组高灵敏度，低时间抖动的单光子探测器。将在100 ps以下尺度上研究样品中量子相干性的特征过程，需要具有时间抖动的单光子探测器，该时间抖动在整个感兴趣的光谱窗口中小于50 ps。