Results 111 to 120 of about 244,861 (311)

Towards a compact THz local oscillator based on a quantum cascade laser [PDF]

open access: yes, 2010
Heterodyne spectroscopy of molecular rotational lines and atomic fine-structure lines is a powerful tool in astronomy and planetary research. One example is the OI fine-structure line at 4.7 THz.
Richter, Heiko   +9 more
core  

Laser induced breakdown spectroscopy on meteorites [PDF]

open access: yes, 2006
The classification of meteorites when geological analysis is unfeasible is generally made by the spectral line emission ratio of some characteristic elements.
LONGO S   +5 more
core   +1 more source

Observation of multiple time crystals in a driven-dissipative system with Rydberg gas

open access: yesNature Communications
Time crystals, as temporal analogs of space crystals, manifest as stable and periodic behavior that breaks time translation symmetry. In an open quantum system, many-body interaction subjected to dissipation allows one to develop the time crystalline ...
Yuechun Jiao   +7 more
doaj   +1 more source

Nonlinearity of Microwave Electric Field Coupled Rydberg Electromagnetically Induced Transparency and Autler-Townes Splitting

open access: yesApplied Sciences, 2019
An electromagnetically induced transparency (EIT) of a cascade-three-level atom involving Rydberg level in a room-temperature cell, formed with a cesium 6S 1 / 2-6P 3 / 2-66 S 1 / 2 scheme, is employed to detect the Autler-Townes (AT) splitting
Liping Hao   +5 more
doaj   +1 more source

Orbital Geometry‐Governed Response of Pressure‐Tunable Quantum Defects in hBN

open access: yesAdvanced Functional Materials, EarlyView.
Defects in hBN act as ultrasensitive quantum manometers when the energy of the intradefect optical transitions is modified by lattice compression. The orbital geometry of the electron wave functions governs how electron hopping and Coulomb interactions react uniquely to the reduction of the van der Waals gap and in‐plane compression, leading to robust ...
Magdalena Grzeszczyk   +6 more
wiley   +1 more source

A C0(_2) laser lattice experiment for cold atoms [PDF]

open access: yes, 2007
This thesis presents work on a laser cooling experiment designed for trapping Rb atoms in a CO(_2) laser optical trap. Some emphasis is placed on experimental features designed to allow the future implementation of a neutral atom quantum computation ...
Weatherill, Kevin J.
core  

Combined information from Raman spectroscopy and optical coherence tomography for enhanced diagnostic accuracy in tissue discrimination [PDF]

open access: yes, 2014
We thank the UK EPSRC for funding, the CR-UK/EPSRC/MRC/DoH (England) imaging programme, the European Union project FAMOS (FP7 ICT, contract no. 317744) and the European Union project IIIOS (FP7/2007-2013, contract no. 238802).
C. Simon Herrington   +11 more
core   +1 more source

Depth Measurement Error Analysis and Structural Parameter Correction of Structured Light Depth Imager

open access: yesPhotonics
Considering that structured light depth imagers are difficult to use for precision measurements due to their limited measurement accuracy, we propose an innovative method for correcting structural parameters of structured light depth imagers to reduce ...
Shuang Yu   +6 more
doaj   +1 more source

Selective Laser Spectroscopy of the Bixbyite-Type Yttrium Scandate Doped by Rare-Earth Ions. [PDF]

open access: yesMaterials (Basel), 2023
Dobretsova E   +4 more
europepmc   +1 more source

Titanium Suboxides Responsible for Electronic Anomaly Near Room Temperature in the Ti3C2Tx MXene

open access: yesAdvanced Functional Materials, EarlyView.
Our multi‐technique study reveals that the near‐room‐temperature anomaly in Ti3C2Tx MXene is linked to titanium suboxide nanodomains, including Ti3O5, embedded within the MXene host. Their temperature‐driven transformation provides an alternative explanation to solvent‐ and swelling‐based models and offers new insight into the thermally activated ...
Bence G. Márkus   +8 more
wiley   +1 more source

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