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Articles by Deen Wang
Copper ions (${{\rm Cu}^{2 +}}$) play critical roles in biological systems but induce toxicity at elevated concentrations. This study, to our knowledge, reports a novel ratio-metric fluorescence sensor based on near-infrared (NIR)-emissive PbS quantum dot (QD)-doped hydrogel fiber sensor for real-time, selective detection of ${{\rm Cu}^{2 +}}$. The sensor employs a biocompatible and mechanically flexible HF with a core-cladding structure to confine light within the core for efficient transmission.
Spatial filter pinhole image acquisition based on beam self-fold back in a multi-pass amplifier laser system
Today the energy in a multi-pass amplifier laser system can reach 10,000 J high or more. The high-precision alignment of beams is one of the prerequisite conditions for the operation of multi-pass amplification laser systems. High-precision alignment reference acquisition is the base for a precise alignment emphasizing the precise far-field reference imaging of the final-pass pinhole.
Highly adaptive single-shot surface shape distortion measurement method for high-power lasers
Highlights • Monitors surface shape distortion in deformable mirrors for high-power lasers • A single-shot adaptive method accurately measures surface shape changes • Adapts to narrow spaces and ensures fast and precise reconstruction Summary Real-time online monitoring of the surface shape distortion (SSD) of the deformable mirror (DM) is essential to the design, control, and performance of high-power laser facilities.
Integrated Wavefront Sensing and Processing Method Utilizing Optical Neural Network
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Generation of a mode-tunable optical vortex based on a mirror curvature dynamically controlled Z-shaped resonant cavity
Deen Wang, Ming Lei, Shibing Lin, Yamin Zheng, Shaonan Kang, and Lei Huang Author Affiliations Deen Wang,1,2,3 Ming Lei,4 Shibing Lin,1,2 Yamin Zheng,1,2 Shaonan Kang,1,2 and Lei Huang1,2,* 1Key Laboratory of Photonic Control Technology (Tsinghua University) Ministry of Education, Beijing, 10084, China 2Institute of Lasers and Photonics, Department of Precision Instrument, Tsinghua University, Beijing 100084, China 3Research Center of Laser Fusion, China Academy of Engineering Physics, P.O....
Deformable mirror resolution-matching-based two-stage wavefront sensorless adaptive optics method
Abstract In high-power laser facilities, the application of a traditional wavefront control method is limited under the influence of a continuous phase plate (CPP). In order to obtain a satisfactory far-field intensity distribution at the target of the beamline with the CPP, a novel deformable mirror (DM) resolution-matching-based two-stage wavefront sensorless adaptive optics method is proposed and demonstrated.
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