Results 191 to 200 of about 1,141 (209)

STARK DECELERATION AND TRAPPING OF OH RADICALS

Annual Review of Physical Chemistry, 2006
▪ Abstract  The motion of polar molecules can be controlled by time-varying inhomogeneous electric fields. In a Stark decelerator, this is exploited to accelerate, transport, or decelerate a fraction of a molecular beam. When combined with a trap, the decelerator provides a means to store the molecules for times up to seconds.
Gérard Meijer, Sebastiaan Van De Meerakker, Nicolas Vanhaecke   +2 more
exaly   +4 more sources

State purified deceleration of SD radicals by a Stark decelerator

Molecular Physics, 2015
ABSTRACTDeceleration of supersonic beams of SD radicals by a linear Stark decelerator was demonstrated for the first time. SD radicals produced by an electric discharge of supersonic beams mainly occupied the lowest two rotational states of and in the 2Π3/2 state.
Eckart Wrede, Takamasa Momose, David Carty   +2 more
exaly   +2 more sources

Stark deceleration of hydrogen atoms

Journal of Physics B: Atomic, Molecular and Optical Physics, 2006
Hydrogen atoms in a cold supersonic expansion with an average velocity of 700 m s−1 have been excited to Rydberg Stark states with principal quantum number in the range n = 20–25 and subsequently decelerated and accelerated in time-independent inhomogeneous electric fields. Accelerations of up to 2 × 108 m s−2 have been achieved and the initial kinetic
E Vliegen, F Merkt
exaly   +2 more sources

A high-voltage amplifier for traveling-wave Stark deceleration

Review of Scientific Instruments, 2018
Controlling high voltage is a critical aspect of Stark deceleration, a technique that uses electric fields to produce slow molecules. Traditionally, Stark deceleration required only commercial high-voltage switches to operate. However, a new continuous version of Stark deceleration, which promises significantly improved performance, requires chirped ...
Yomay Shyur, Jason Bossert, Noah Fitch   +2 more
exaly   +3 more sources

Stark deceleration and trapping of hydrogen Rydberg atoms

Physical Review A, 2007
Hydrogen atoms in supersonic expansions with velocities in the range from $700\phantom{\rule{0.3em}{0ex}}\text{to}\phantom{\rule{0.3em}{0ex}}800\phantom{\rule{0.3em}{0ex}}\mathrm{m}∕\mathrm{s}$ have been excited to Rydberg-Stark states with principal quantum number $n$ between 20 and 40, decelerated to zero velocity in the lab frame using time ...
H Schmutz, E Vliegen, F Merkt
exaly   +2 more sources

A New Desirable Molecular Species for Stark Deceleration

Chinese Physics Letters, 2008
We demonstrate a new molecular sample (CH radical) for Stark deceleration by Monte Carlo simulation, study the dependences of the decelerating effect on the different phase angles, stage number and decelerating voltages, and obtain some new optimized conditions and parameters.
Yin Jian-Ping
exaly   +2 more sources

Beyond the phase stability in standard Stark deceleration

Physical Review A
Dongdong Zhang, Shunyong Hou
exaly   +2 more sources

Pulsed operation of a ring Stark decelerator

Journal of Physics B: Atomic, Molecular and Optical Physics, 2018
Abstract Stark deceleration is a technique that uses time-varying inhomogeneous electric fields to decelerate polar molecules for various molecular beam and trapping experiments. New ring-geometry Stark decelerators with continuously varying voltages offer a method to produce a more intense source of molecules than in the more ...
Yomay Shyur, Jason A Bossert, H J Lewandowski   +2 more
openaire   +1 more source

An Alternative Operation Scheme to Improve the Efficiency of a Stark Decelerator

Chinese Physics Letters, 2021
A Stark decelerator can slow down polar molecules to very low velocities. When the velocities are very low, the number of cold molecules obtained is very small. In order to obtain a higher quantity of cold molecules, inspired by the work of Reens et al. [Phys. Rev. Res.
Mei Du, Dongdong Zhang, Dajun Ding
openaire   +1 more source

STARK AND ZEEMAN DECELERATION OF NEUTRAL ATOMS AND MOLECULES

Laser Spectroscopy, 2008
Argon and hydrogen atoms excited to Rydberg Stark states in supersonic expansions have been decelerated using inhomogeneous electric fields. In the case of hydrogen, the atoms have been decelerated from an initial velocity of 700 m/s to zero velocity in the lab frame using time-dependent inhomogeneous electric fields and subsequently stored in two- and
HOGAN, S. D., VLIEGEN, E., SPRECHER, D., VANHAECKE, N., ANDRIST, M., SCHMUTZ, H., MEIER, U., MEIER, B. H., MERKT, F.   +8 more
openaire   +2 more sources