Results 121 to 130 of about 864,560 (239)

Construction and use of an adaptive optics two-photon microscope with direct wavefront sensing. [PDF]

Nat Protoc, 2023
Yao P, Liu R, Broggini T, Thunemann M, Kleinfeld D.   +4 more
europepmc   +1 more source

Submillimeter Pupil-Plane Wavefront Sensing Submillimeter Pupil-Plane Wavefront Sensing

, 2020
The goal of a large (25 m) submillimeter telescope with high aperture efficiencies up to frequencies of ~ 1 THz requires a wavefront sensor able to measure the telescope surface figure to an accuracy of order 1 micron, better than has been achieved to ...
E Serabyn, J K Wallace
core  

Optimization of Blasting‑Induced Roof Cutting Parameters in Key Stratum and Its Application in Gob‑Side Entry Retention Technology

Energy Science &Engineering, EarlyView.
This study addresses hard roof coal seam conditions by optimizing key stratum blasting‐cutting parameters through theoretical analysis, numerical simulation, and field tests. It proposes calculation methods for blast hole spacing and delay timing based on stress wave theory, controlling roadway deformation within 35 mm, thereby enhancing resource ...
Qiong Liu, Duanxiang Fu, Hongbin Li
wiley   +1 more source

Microlens Array-Based Beam Profile and Wavefront Sensor With Physical Constraint Learning

IEEE Photonics Journal
The beam profile and wavefront characteristics of laser beams are essential for numerous laser applications, including micromachining and microfabrication.
Feng-Chun Hsu, Chun-Yu Lin, Chia-Yuan Chang, Shean-Jen Chen   +3 more
doaj   +1 more source

Real-Time Wavefront Sensing at High Resolution with an Electrically Tunable Lens. [PDF]

Sensors (Basel), 2023
Oliva-García R, Cairós C, Trujillo-Sevilla JM, Velasco-Ocaña M, Rodríguez-Ramos JM.   +4 more
europepmc   +1 more source

Hyperspectral wavefront sensing with a multicore fiber

Single-shot hyperspectral wavefront sensing is essential for applications like spatio-spectral coupling metrology in high power laser or fast material dispersion imaging.
Blochet, Baptiste, Papadopoulos, Dimitrios, Guillon, Marc, Lebas, Nathalie, Berto, Pascal   +4 more
core  

Wavefront error sensing for LDR [PDF]

, 1988
Wavefront sensing is a significant aspect of the LDR control problem and requires attention at an early stage of the control system definition and design.
Glavich, T. A., Tubbs, Eldred F.
core  

Advancing super‐resolution stimulated emission depletion microscopy with luminescent lanthanide nanocrystals

FlexMat, EarlyView.
The state‐of‐the‐art research advances and its cutting‐edge application in super resolution stimulated emission depletion technology based on luminescent lanthanide nanocrystals. Abstract Stimulated emission depletion (STED) microscopy overcomes the diffraction limit to reveal subcellular structures beyond the reach of conventional optical methods ...
Yaqi Chen, Tengfei Ma, Shuping Huang, Wei Guo, Yiming Wu   +4 more
wiley   +1 more source

Optimized Coherence Masking Improves Ultrasound Imaging of Kidney Cysts

Journal of Ultrasound in Medicine, EarlyView.
Objectives Renal cystic lesions are exceedingly common and typically benign, though accurate diagnostic techniques are required to recognize the subset of malignant lesions that require timely intervention. Ultrasound (US) is the preferred first line test for renal cyst evaluation because it is safe, widely accessible, and low cost. US imaging, however,
Scott Schoen Jr, Theodore T. Pierce, Sai Dhanush Reddy Jeggari, Abder‐Rhaman Ali, Kai E. Thomenius, Michael Wang, Brian Lause, Rimon Tadross, Kathleen Pope, David Hunt, Mary K. Peters, Mike Washburn, Anthony E. Samir   +12 more
wiley   +1 more source

A Framework for Iterative Phase Retrieval Technique Integration into Atmospheric Adaptive Optics—Part I: Wavefront Sensing in Strong Scintillations

Photonics
The objective of this study, which is divided into two parts, is twofold: to address long-standing challenges in the sensing of atmospheric turbulence-induced wavefront aberrations under strong scintillation conditions via a comparative analysis of ...
Mikhail A. Vorontsov, Ernst Polnau
doaj   +1 more source