Results 71 to 80 of about 2,466,963 (224)
Quantum theory of a magneto-optical trap
Physical Review AWe present a quantum theory of a magneto-optical trap (MOT) from first principles based on the quantum kinetic equation for the atomic density matrix with taking into account the recoil effects caused by the interaction of atoms with the laser field. An efficient method for solving the quantum kinetic equation is proposed.
O. N. Prudnikov +4 more
openaire +2 more sources
Laser cooling and loading of Rb into a large period, quasi-electrostatic, optical lattice [PDF]
, 2005 This thesis reports on the design and construction of, and results from, an optical-dipole trapping apparatus developed to confine ultracold rubidium atoms in a conservative, large period, optical-dipole trap. An ultra-high vacuum system was designed and
Griffin, Paul F, Griffin, Paul F.
core
Efficient Loading of an Yb MOT on the 1S0 → 1P1 Transition
PhotonicsWe demonstrate efficient loading of an Yb three-dimensional magneto-optical trap (3D MOT) on the 1S0 → 1P1 transition. The experiment employs a two-dimensional magneto-optical trap (2D MOT) as an efficient cold atom source. Through optimization of the 2D
Zhufang Zhao +7 more
doaj +1 more source
Review of Gastrointestinal Capsule Robots: Materials, Actuation, Diagnostics, and Therapeutics
Advanced Science, EarlyView.This review examines gastrointestinal capsule robots through a systems engineering lens, covering shell materials, actuation and localization strategies, diagnostic modalities, therapeutic interventions, and commercialization status. By mapping the complete technological chain from fabrication to clinical deployment, this work identifies critical gaps ...
Zengsheng Li +8 more
wiley +1 more source
Machine-learning-based automated loading of strontium isotopes into magneto-optical trap
AIP Advances, 2023 We implemented optimization techniques of machine learning (ML) to obtain the mutually exclusive sets of experimental parameters that maximize the number of strontium atoms of different isotopes (88Sr, 86Sr, and 87Sr) in a magneto-optical trap (MOT ...
Korak Biswas +4 more
doaj +1 more source
Local Solvent Ordering Drives Supramolecular Chirality Inversion
Advanced Science, EarlyView.Local solvent organization is shown to govern supramolecular chirality by selecting distinct chiral assembly pathways. A subtle change in water‐DMSO composition reverses the helical sense of a chiral perylene bisimide, while heating induces an irreversible thermal inversion to a more stable enantiomorph.
Triza Pal +4 more
wiley +1 more source
Fast and dense magneto-optical traps for strontium [PDF]
Physical Review A, 2019 9 pages, 6 ...
S. Snigirev +4 more
openaire +4 more sources
Advanced Science, EarlyView.Magneto‐NIR‐II‐programmed NFSH nanozymes integrate magnetic blood–brain barrier (BBB) translocation, CD44 targeting, multimodal imaging, and cascade catalytic therapy for glioblastoma. Alternating magnetic fields and NIR‐II irradiation amplify ferroptosis, release H2S, suppress autophagic and mitophagic repair, and reshape the immune microenvironment ...
Ruocan Liu +7 more
wiley +1 more source
Cooling the motion of a silica microsphere in a magneto-gravitational trap in ultra-high vacuum
New Journal of Physics, 2018 Levitated optomechanical systems, and particularly particles trapped in vacuum, provide unique platforms for studying the mechanical behavior of objects well-isolated from their environment.
Bradley R Slezak +3 more
doaj +1 more source
Advanced Science, EarlyView.As CMOS technology approaches fundamental energy limits, new paradigms for low‐power information processing are required. Magnetic systems are attractive for their spin transport, yet current‐induced magnetization control is energy inefficient. Multiferroic heterostructures enable energy‐efficient electric field manipulation of magnetism.
Donghyeon Lee +3 more
wiley +1 more source