Results 31 to 40 of about 8,441 (216)
Nuclear Engineering and Technology, 2021 The laser transport system of the high power laser facility is mainly composed of large-aperture laser transport mirrors (TMs). Obtaining the high-resolution online damage images during the operation, which is of great significance for operating safely ...
Wang Fang +4 more
doaj +1 more source
Ultra high definition video decoding with motion JPEG XR using the GPU [PDF]
, 2011 Many applications require real-time decoding of highresolution video pictures, for example, quick editing of video sequences in video editing applications.
De Cock, Jan +5 more
core +1 more source
Estimating the phase in ground-based interferometry: performance comparison between single-mode and multimode schemes [PDF]
, 2010 In this paper we compare the performance of multi and single-mode interferometry for the estimation of the phase of the complex visibility. We provide a theoretical description of the interferometric signal which enables to derive the phase error in ...
A. Chelli +29 more
core +4 more sources
Curvature Sensing-Based Pupil Alignment Method for Large-Aperture Telescopes
IEEE Photonics Journal, 2023 In optical systems, pupil alignment is an important component of wavefront sensing, closed-loop feedback, and imaging vignetting control because it directly affects the detection limit of the system and thus the realization of scientific goals.
Qichang An +5 more
doaj +1 more source
Ultra-high resolution coded wavefront sensor
Optics Express, 2017 Wavefront sensors and more general phase retrieval methods have recently attracted a lot of attention in a host of application domains, ranging from astronomy to scientific imaging and microscopy. In this paper, we introduce a new class of sensor, the Coded Wavefront Sensor, which provides high spatio-temporal resolution using a simple masked sensor ...
Wang, Congli +3 more
openaire +3 more sources
Results in Optics, 2021 An incoherent optical system with wavefront coding extends the depth of field (DOF) by employing a cubic phase plate (CPP). We designed a digital microscope with a CPP in the aperture stop and on the surface of the lens, which extended the DOF.
Chi-Feng Lee, Cheng-Chung Lee
doaj +1 more source
Methanol immersion reduces spherical aberration of water dipping lenses at long wavelengths used in multi-photon laser scanning microscopy [PDF]
, 2012 Dipping objectives were tested for multi-photon laser scanning microscopy, since their large working distances are advantageous for thick specimens and the absence of a coverslip facilitates examination of living material.
Bestvater +28 more
core +1 more source
Observation of cone and rod photoreceptors in normal subjects and patients using a new generation adaptive optics scanning laser ophthalmoscope. [PDF]
, 2011 We demonstrate the capability of a new generation adaptive optics scanning laser ophthalmoscope (AOSLO) to resolve cones and rods in normal subjects, and confirm our findings by comparing cone and rod spacing with published histology measurements.
Duncan, Jacque L +3 more
core +3 more sources
Terahertz wavefront engineering using a hard-coded metasurface
Optical and Quantum Electronics, 2023 During the past few years, coding metamaterials (MM) drew significant attention, where the far-field scattering/transmission pattern of the electromagnetic wave (particularly in the THz regime) can be encoded into a single or few-bit digitized phase-response of the metasurface, thereby enabling a full digital control.
Noori, Aileen +6 more
openaire +2 more sources
A review of liquid crystal spatial light modulators: devices and applications
Opto-Electronic Science, 2023 Spatial light modulators, as dynamic flat-panel optical devices, have witnessed rapid development over the past two decades, concomitant with the advancements in micro- and opto-electronic integration technology.
Yiqian Yang, Andrew Forbes, Liangcai Cao
doaj +1 more source