Results 61 to 70 of about 29,655 (227)

Tuning Locality of Pair Coherence in Graphene-based Andreev Interferometers [PDF]

We report on gate-tuned locality of superconductivity-induced phase-coherent magnetoconductance oscillations in a graphene-based Andreev interferometer, consisting of a T-shaped graphene bar in contact with a superconducting Al loop.
Jeong, D, Kim, M, Lee, GH, Lee, HJ, LEE, HYUN WOO, Shin, YS   +5 more
core   +1 more source

Modulated Unit-Norm Tight Frames for Compressed Sensing [PDF]

, 2014
In this paper, we propose a compressed sensing (CS) framework that consists of three parts: a unit-norm tight frame (UTF), a random diagonal matrix and a column-wise orthonormal matrix.
Gan, Lu, Ling, Cong, Sun, Sumei, Zhang, Peng   +3 more
core   +1 more source

Multi‐Soliton Microcombs Enable Ultrafast Nanometric‐Precision Ranging and Photon‐Level Detection

Advanced Science, EarlyView.
Our work first demonstrates dual‐multi‐soliton ranging and confirms its multifunctional capability. The method achieves ultrafast and nanometric‐precision measurement. For practical applications, we further extend the multi‐soliton states to photon‐level ranging.
Jiawen Zhi, Xiaoyang Guo, Xusheng Yang, Brent E. Little, Sai T. Chu, Chenggang Shao, Mengyu Wang, Yan Liang, Peng Xie, Weiqiang Wang, Hanzhong Wu   +10 more
wiley   +1 more source

The Repeatability of Axial Length Measurements Using a Scheimpflug-based System

Journal of Ophthalmic & Vision Research, 2023
Purpose: To assess the repeatability of Pentacam AXL as a Scheimpflug-based system or measuring axial length according to the age, sex, lens type, axial length value, and type of cataract. Methods: The present study was conducted using multistage cluster
Sara Sardari, Mehdi Khabazkhoob, Ebrahim Jafarzadehpur, Akbar Fotouhi   +3 more
doaj   +1 more source

Can Partial Coherence Interferometry be Used to Determine Retinal Shape?

Optometry and Vision Science, 2011
To determine likely errors in estimating retinal shape using partial coherence interferometric instruments when no allowance is made for optical distortion.Errors were estimated using Gullstrand no. 1 schematic eye and variants which included a 10 diopter (D) axial myopic eye, an emmetropic eye with a gradient-index lens, and a 10.9 D accommodating eye
Atchison, David, Charman, W
openaire   +3 more sources

Quantitative Stain Mapping in X‐Ray Virtual Histology

Advanced Science, EarlyView.
Virtual histology promises 3D tissue examination without physical sectioning, yet has lacked the tissue‐specificity of conventional pathology. This work demonstrates the first quantitative three‐dimensional stain mapping at histologically relevant resolution, separating contrast agent from tissue to reveal cellular features such as nuclei. The approach
Dominik John, David M. Paganin, Marie‐Christine Zdora, Lisa Marie Petzold, Patrick Ilg, Junan Chen, Sara Baggio, Johannes B. Thalhammer, Sami Wirtensohn, Julian Moosmann, Jörg U. Hammel, Felix Beckmann, Samantha J. Alloo, Jannis N. Ahlers, Madleen Busse, Julia Herzen, Kaye S. Morgan   +16 more
wiley   +1 more source

Label‐Free and Immobilization‐Free Protein‐Binding Assays by Ultraviolet Transient Absorption Microscopy

Advanced Science, EarlyView.
A femtosecond UV pump–probe microscope resolves binding‐induced changes in protein excited‐state dynamics and converts these intrinsic contrasts into an equilibrium affinity readout. By probing tryptophan responses directly in solution, the approach enables quantitative determination of dissociation constants without labeling or immobilization ...
Jianghao Shen, Qiangqiang Wang, Fan Wu, Yang Gao, Lu Lan, Pu Wang   +5 more
wiley   +1 more source

Accuracy of swept-source optical coherence tomography based biometry for intraocular lens power calculation: a retrospective cross–sectional study

BMC Ophthalmology, 2019
Background To evaluate the accuracy of biometric measurements by a swept-source optical coherence tomography (SS–OCT) based biometry for intraocular lens (IOL) power calculation.
Youngju An, Eun-Kyoung Kang, Hyojin Kim, Min-Ji Kang, Yong-Soo Byun, Choun-Ki Joo   +5 more
doaj   +1 more source

Stellar intensity interferometry: Experimental steps toward long-baseline observations

, 2010
Experiments are in progress to prepare for intensity interferometry with arrays of air Cherenkov telescopes. At the Bonneville Seabase site, near Salt Lake City, a testbed observatory has been set up with two 3-m air Cherenkov telescopes on a 23-m ...
Adams, Ben, Bond, Isobel, Bradbury, Stella, Dravins, Dainis, Jensen, Hannes, Kieda, David B., Kress, Derrick, LeBohec, Stephan, Munford, Edward, Nunez, Paul D., Price, Ryan, Ribak, Erez, Rose, Joachim, Simpson, Harold, Smith, Jeremy   +14 more
core   +1 more source

Comprehensive Comparison of Axial Length Measurement With Three Swept-Source OCT-Based Biometers and Partial Coherence Interferometry.

Journal of refractive surgery, 2019
PURPOSE To compare axial length measurements (and failure rate) of three swept-source optical coherence tomography (SS-OCT)-based biometers: IOLMaster 700 (Carl Zeiss Meditec, Jena, Germany), OA-2000 (Tomey, Nagoya, Japan), and Argos (Movu Inc., Komaki ...
Jinhai Huang, Hao Chen, Yue Li, Zhongxing Chen, Rongrong Gao, Jinjin Yu, Yun-e Zhao, Weicong Lu, C. McAlinden, Qin-Mei Wang   +9 more
semanticscholar   +1 more source