Results 101 to 110 of about 29,655 (227)

Blinking Optical Tweezers for Atom Rearrangements

Advanced Quantum Technologies, EarlyView.
The work introduces an energy‐efficient method for holding and rearranging an N ×$\times$ M array of atoms using only N optical tweezers, using just 1M of the optical power per atom. In the proof‐of‐concept experiments, single blinking tweezer holds M = 9 atoms and further facilitates rearrangement M = 4 ∼$\sim$ 5 atoms in various configurations ...
Kangjin Kim, Kangheun Kim, Jaewook Ahn
wiley   +1 more source

Plans for phase coherent long baseline interferometry for geophysical applications using the Anik-B communications satellite [PDF]

A pilot project to establish an operational phase stable very long baseline interferometer (VLBI) for geophysical studies is described.
Cannon, W. H., Galt, J. A., Knoweles, S. H., Petrachenko, W. T., Popelar, J., Waltman, W. B., Yen, J. L.   +6 more
core   +1 more source

Better 3D Inspection with Structured Illumination Part I: Signal Formation and Precision

, 2015
For quality control in the factory, 3D-metrology faces increasing demands for high precision and for more space-bandwidth-speed-product SBSP (number of 3D-points/sec). As a potential solution, we will discuss Structured-Illumination Microscopy (SIM).
Häusler, Gerd, Kessel, Alexander, Yang, Zheng   +2 more
core   +1 more source

High‐Precision Measurement of Time Delay with Frequency‐Resolved Hong‐Ou‐Mandel Interference of Weak Coherent States

Advanced Quantum Technologies, EarlyView.
High‐precision time‐delay measurements are demonstrated using frequency‐resolved Hong‐Ou Mandel (HOM) interference with weak coherent states. The method, by exploiting the quantum eraser phenomenon, achieves low uncertainty even for delays exceeding the photon coherence time, where traditional HOM interferometry fails, thus confirming theoretical ...
Francesco Di Lena, Fabrizio Sgobba, Danilo Triggiani, Andrea Andrisani, Cosmo Lupo, Piergiorgio Daniele, Gennaro Fratta, Giulia Acconcia, Ivan Rech, Luigi Santamaria Amato   +9 more
wiley   +1 more source

Effect of orthokeratology on precision and agreement assessment of a new swept-source optical coherence tomography biometer

Eye and Vision, 2020
Background To evaluate the effect of orthokeratology on precision of measurements in children using a new swept-source optical coherence tomography (SS-OCT) optical biometer (OA-2000), and agreement between its measurements and those provided by the ...
Bao Shu, Fangjun Bao, Giacomo Savini, Weicong Lu, Ruixue Tu, Haisi Chen, Benhao Song, Qinmei Wang, Jinhai Huang   +8 more
doaj   +1 more source

Aharonov-Bohm Interferometry with Interacting Quantum Dots: Spin Configurations, Asymmetric Interference Patterns, Bias-Voltage-Induced Aharonov-Bohm Oscillations, and Symmetries of Transport Coefficients

, 2002
We study electron transport through multiply-connected mesoscopic geometries containing interacting quantum dots. Our formulation covers both equilibrium and non-equilibrium physics.
A. Stern, A. Yacoby, A.L. Yeyati, A.W. Holleitner, B.L. Altshuler, B.L. Altshuler, C. Bruder, D. Boese, D. Goldhaber-Gordon, D. Loss, D.V. Averin, D.V. Averin, F. Simmel, G. Hackenbroich, H. Akera, J. König, J. König, J. König, J. König, J. König, J. König, J. Schmid, Jürgen König, K. Kang, L.I. Glazman, L.J. van der Pauw, M. Büttiker, M. Büttiker, P.A. Mello, P.G. Silvestrov, R. Baltin, R. Baltin, R. Landauer, R. Schuster, S.M. Cronenwett, T.K. Ng, T.V. Shahbazyan, U. Gerland, W. Hofstetter, W. Izumida, W.G. van der Wiel, Y. Gefen, Y. Ji, Y. Meir, Y. Meir, Y. Oreg, Yuval Gefen   +46 more
core   +1 more source

A Selective Deposition Strategy of Ultrathin Metal Layer on Sub‐Micrometer‐Pitch Cu Interconnection for Low‐Temperature Hybrid Bonding

Small Science, EarlyView.
Conventional hybrid bonding approaches require high temperatures and long annealing times, limiting their compatibility with advanced semiconductor packaging. To overcome this limitation, various interfacial metals have been selected to enable uniform electroless deposition on sub‐micrometer Cu pads while preserving dielectric integrity, offering a low‐
Zambaga Otgonbayar, Jungchul Noh, Seong‐Ho Yoon, Gyu‐Sik Park, Suk Jekal, Jiwon Kim, Jeong‐Hwan Lee, Rino Choi, Jeonghun Kim, Myeongjin Kim, Chang‐Min Yoon   +10 more
wiley   +1 more source

Compressive Sensing Theory for Optical Systems Described by a Continuous Model

, 2015
A brief survey of the author and collaborators' work in compressive sensing applications to continuous imaging models.Comment: Chapter 3 of "Optical Compressive Imaging" edited by Adrian Stern published by Taylor & Francis ...
Fannjiang, Albert
core  

Phase Fluctuations in Bose-Einstein Condensates

, 2002
We demonstrate the existence of phase fluctuations in elongated Bose-Einstein Condensates (BECs) and study the dependence of those fluctuations on the system parameters.
Arlt, J. J., Dettmer, S., Ertmer, W., Hellweg, D., Kreutzmann, H., Lewenstein, M., Petrov, D. S., Ryytty, P., Santos, L., Sengstock, K., Shlyapnikov, G. V.   +10 more
core   +1 more source

Framework for X‐ray mirror surface shape fitting

Journal of Synchrotron Radiation, EarlyView.
The closed‐form expressions for elliptic cylinders, hyperbolic cylinders, ellipsoids, hyperboloids, and diaboloids used for X‐ray mirror surface shapes are summarized. Additionally, a four‐layer framework to fit the measured surface shape data in slope or height for convenient X‐ray mirror surface characterization is proposed.For accurate ...
Lei Huang, Ruochen Xu, Tianyi Wang, Jumpei Yamada, Joseph Dvorak, Corey Austin, Albert Van Eeckhout, Josep Nicolàs Roman, Kenneth Goldberg, Mourad Idir   +9 more
wiley   +1 more source