Extended depth of field of diffraction limited imaging system using spatial light modulator based intensity compensated polarization coded aperture

基于空间光调制器的三维光学成像近期进展（特邀）

Recent advances in spatial light modulator-based three-dimensional optical imaging (Invited)

本文综述了基于空间光调制器的三维光学成像技术，涵盖从传统二维成像到多维成像、轴向切片等应用，展示了该领域近年来的重要进展。

Mach-Zehnder型电光强度调制器中残余啁啾的表征与补偿

Characterization and Compensation of the Residual Chirp in a Mach-Zehnder-Type Electro-Optical Intensity Modulator

我们利用各种技术来表征基于光纤的马赫-曾德尔电光强度调制器的剩余相位调制。外差技术用于直接测量由于给定的强度变化而引起的相位变化，从而确定器件的啁啾参数。该啁啾参数也通过检查正弦幅度调制的边带比来测量。最后，通过外差信号测量纳秒时间尺度上的强度脉冲引起的频率啁啾。我们表明，这种啁啾可以在很大程度上补偿一个单独的相位调制器。啁啾参数的各种测量结果是合理的协议。

用于单次编码衍射相位恢复的图像先验

Image Priors for Single-Shot Coded Diffraction Phase Retrieval

该研究提出用单个随机相位掩模结合图像先验实现单次编码衍射相位恢复，经模拟和光学实验验证，可高效重建复值物体，为定量相位成像提供实用单次模态。

SLM aided noninvasive imaging through thin scattering layers

We propose and demonstrate a new imaging technique to noninvasively see through scattering layers with the aid of a spatial light modulator (SLM). A relay system projects the incoherent light pattern emitting from the scattering layer onto the SLM. Two coded phase masks are displayed, one after another, on the SLM to modulate the projected scattered field. Two corresponding intensity patterns are recorded by a digital camera, and subtracted one from the other in the computer to obtain a bipolar matrix. A modified phase retrieval algorithm is used to retrieve the object information from this bi…

高功率量子极限光电二极管与经典激光噪声压缩

High-Power Quantum-Limited Photodiode and Classical Laser Noise Squashing

本文开发了一种铅补偿光电探测器实现量子极限读出，并通过反馈将商用光纤激光器的经典幅度噪声压缩至散粒噪声极限，且不损害其线宽。

Multiplexed phase-space imaging for 3D fluorescence microscopy

Optical phase-space functions describe spatial and angular information simultaneously; examples include light fields in ray optics and Wigner functions in wave optics. Measurement of phase-space enables digital refocusing, aberration removal and 3D reconstruction. High-resolution capture of 4D phase-space datasets is, however, challenging. Previous scanning approaches are slow, light inefficient and do not achieve diffraction-limited resolution. Here, we propose a multiplexed method that solves these problems. We use a spatial light modulator (SLM) in the pupil plane of a microscope in order t…