Repair and upgrade of a gated, intensified CCD camera for time-resolved photoluminescence spectroscopy

我们申请资金来维修和升级一台增强型门控电荷耦合器件(CCD)相机，这是一种先进的电子光传感器，专门用于时间分辨光致发光光谱。在这一应用中，半导体发出的光是在样品被短激光脉冲激发后作为时间函数进行测量的。但这种测量使我们能够解开正在研究的材料的半导体物理，即支撑半导体属性的电子动力学。虽然我们的相机因意外过度暴露在校准光源下而受损。但这种损坏使常规数据采集成为问题，它还削弱了用于材料研究的最先进的时间分辨光谱学设施(总投资约为150万美元)。适度的投资修复它将使我们能够最大限度地提高该设施的研究产出，并将有助于我们一流的高资质人员培训。我们还请求拨款购买额外的ccd摄像机，这将显著增强本提案中两名研究人员的联合实验设施。这台新摄像机将缩小可见光谱和近红外光谱部分之间的可探测性差距。它将使我们能够进行高灵敏度的光学测量，以确定我们的材料的特征。

We request funding to repair and upgrade an intensified, gated charge-coupled device (CCD) camera, an advanced electronic light sensor, that is dedicated to time-resolved photoluminescence spectroscopy.  In this application, light that is emitted by semiconductors is measured as a function of time after the sample is excited by a short laser pulse.  This measurement allows us to unravel the semiconductor physics of the materials under study, namely the electronic dynamics that underpin the semiconductor properties.  Our camera has suffered damage due to accidental overexposure to a calibration light source.  This damage makes routine data acquisition problematic, and it cripples what is otherwise a state-of-the-art facility for time-resolved spectroscopy for materials research (with a total investment of approximately 1.5M$).  A modest investment to repair it will allow us to maximise the research output of this facility and will contribute to our first-class training of highly-qualified personnel.We also request funding to purchase an additional CCD camera that will enhance significantly the combined experimental facility of the two investigators in this proposal.  This new camera will close the detectability gap at the interface between the visible and near-infrared parts of the light spectrum, and it will allow us to make highly sensitive optical measurements necessary for the characterisation of our materials.