Results 71 to 80 of about 64,115 (273)

Freeform Surface Graded Optimization of Deformable Mirrors in Integrated Zoom and Image Stabilization System Through Vectorial Ray Tracing and Image Point Freezing Method

IEEE Photonics Journal, 2020
Integrated zoom and image stabilization system based on deformable mirrors (DMs) has advantages of miniaturization, rapid response and low energy consumption.
Yan Ning, Yao Hu, Xuemin Cheng, Qun Hao, Yang Cheng, Tengfei Li, Xin Tao   +6 more
doaj   +1 more source

Simultaneous exoplanet detection and instrument aberration retrieval in multispectral coronagraphic imaging

, 2013
High-contrast imaging for the detection and characterization of exoplanets relies on the instrument's capability to block out the light of the host star.
Beuzit, Jean-Luc, Fusco, Thierry, Mouillet, David, Mugnier, Laurent M., Ygouf, Marie   +4 more
core   +2 more sources

Bridging the gap: Multi‐stakeholder perspectives of molecular diagnostics in oncology

Molecular Oncology, EarlyView.
Although molecular diagnostics is transforming cancer care, implementing novel technologies remains challenging. This study identifies unmet needs and technology requirements through a two‐step stakeholder involvement. Liquid biopsies for monitoring applications and predictive biomarker testing emerge as key unmet needs. Technology requirements vary by
Jorine Arnouts, Senada Koljenović, Elise Daems, Karolien De Wael, Marc Peeters, Léon C. van Kempen, Greetje Vanhoutte, Karen Zwaenepoel, Timon Vandamme   +8 more
wiley   +1 more source

High-resolution imaging of zeolite with aberration-corrected transmission electron microscopy

AIP Advances, 2013
We demonstrated high-resolution imaging of atomic columns in zeolite frameworks with spherical aberration-corrected transmission electron microscopy (AC-HRTEM). An MFI-type zeolite was observed by AC-HRTEM with optimized optical setup.
Kaname Yoshida, Yukichi Sasaki, Hiroki Kurata   +2 more
doaj   +1 more source

Recent Progress on Ultrathin Metalenses for Flat Optics

iScience, 2020
Summary: As technology advances, electrical devices such as smartphones have become more and more compact, leading to a demand for the continuous miniaturization of optical components.
Seong-Won Moon, Yeseul Kim, Gwanho Yoon, Junsuk Rho   +3 more
doaj   +1 more source

Miniature optical planar camera based on a wide-angle metasurface doublet corrected for monochromatic aberrations

, 2016
Optical metasurfaces are two-dimensional arrays of nano-scatterers that modify optical wavefronts at subwavelength spatial resolution. They are poised to revolutionize optics by enabling complex low-cost systems where multiple metasurfaces are ...
Arbabi, Amir, Arbabi, Ehsan, Faraon, Andrei, Han, Seunghoon, Horie, Yu, Kamali, Seyedeh Mahsa   +5 more
core   +1 more source

Investigating the cell of origin and novel molecular targets in Merkel cell carcinoma: a historic misnomer

Molecular Oncology, EarlyView.
This study indicates that Merkel cell carcinoma (MCC) does not originate from Merkel cells, and identifies gene, protein & cellular expression of immune‐linked and neuroendocrine markers in primary and metastatic Merkel cell carcinoma (MCC) tumor samples, linked to Merkel cell polyomavirus (MCPyV) status, with enrichment of B‐cell and other immune cell
Richie Jeremian, Sriraam Sivachandran, Melissa Galati, Brandon Ramchatesingh, Hibo Rijal, Johnny Hanna, Elena Netchiporouk, May Chergui, Margaret Redpath, Samy Abou Setah, Ivan V. Litvinov   +10 more
wiley   +1 more source

exCTF simulator: Simulation tool for phase contrast transfer function for aberration-corrected transmission electron microscopy

Journal of Analytical Science and Technology, 2020
Background The contrast transfer function (CTF) is an important principle in the field of transmission electron microscopy (TEM) imaging. It provides information on how the electron wave that interacted with a sample (in frequency domain) in an objective
Sang-Chul Lee, Jong-Man Jeung, Sang-Gil Lee, Jin-Gyu Kim   +3 more
doaj   +1 more source

Adaptive optical microscopy via virtual-imaging-assisted wavefront sensing for high-resolution tissue imaging

PhotoniX, 2022
Adaptive optics (AO) is a powerful tool for optical microscopy to counteract the effects of optical aberrations and improve the imaging performance in biological tissues.
Zhou Zhou, Jiangfeng Huang, Xiang Li, Xiujuan Gao, Zhongyun Chen, Zhenfei Jiao, Zhihong Zhang, Qingming Luo, Ling Fu   +8 more
doaj   +1 more source

Extremely fast focal-plane wavefront sensing for extreme adaptive optics

, 2012
We present a promising approach to the extremely fast sensing and correction of small wavefront errors in adaptive optics systems. As our algorithm's computational complexity is roughly proportional to the number of actuators, it is particularly suitable
Andrei, Raluca, Doelman, Niek, Fraanje, Rufus, Keller, Christoph U., Korkiakoski, Visa, Verhaegen, Michel   +5 more
core   +2 more sources