A specially-designed optically transparent medium (OTM) is employed to map a pulse spectrum to a temporal waveform and utilize a single-pixel photodiode for detection at the MHz scale. We propose and demonstrate a feasible experimental arrangement for photonic time-stretch imaging (PTSI), composed of a compact OTM with a 200 × 180 × 10 mm volume, which results in 37 inner reflections and an 8.04 m propagation length of the light beam. The simulation results, realized by an optical pulse stretched from 40 fs to 2.4 ns, firmly verify the great potential for OTM-PTSI systems to be used in transient inspection and diagnosis applications.

中文翻译：

---

使用光学透明介质的超快光子时间拉伸成像

采用专门设计的光学透明介质（OTM）将脉冲频谱映射到时间波形，并利用单像素光电二极管进行MHz级检测。我们提出并论证了光子时间拉伸成像（PTSI）的可行实验装置，该装置由体积为200×180×10 mm的紧凑型OTM组成，可产生37次内反射，并且光束的传播长度为8.04 m。通过从40 fs扩展到2.4 ns的光脉冲实现的仿真结果坚定地证明了OTM-PTSI系统在瞬态检查和诊断应用中具有巨大的潜力。