Strongly aligned and oriented molecular samples at a kHz repetition rate

We demonstrate strong adiabatic laser alignment and mixed-field orientation at kHz repetition rates. We observe degrees of alignment as large as cos\Theta=0.94 at 1 kHz operation for iodobenzene. The experimental setup consist of a kHz laser system simultaneously producing pulses of 30 fs (1.3 mJ) a...

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Published in:arXiv.org 2013-05
Main Authors: Trippel, Sebastian, Mullins, Terry, Müller, Nele L M, Kienitz, Jens S, Długołecki, Karol, Küpper, Jochen
Format: Article
Language:English
Subjects:
Alignment
Image acquisition
Molecular beams
Recording
Repetition
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Mullins, Terry
Müller, Nele L M
Kienitz, Jens S
Długołecki, Karol
Küpper, Jochen
description We demonstrate strong adiabatic laser alignment and mixed-field orientation at kHz repetition rates. We observe degrees of alignment as large as cos\Theta=0.94 at 1 kHz operation for iodobenzene. The experimental setup consist of a kHz laser system simultaneously producing pulses of 30 fs (1.3 mJ) and 450 ps (9 mJ). A cold 1 K state-selected molecular beam is produced at the same rate by appropriate operation of an Even-Lavie valve. Quantum state selection has been obtained using an electrostatic deflector. A camera and data acquisition system records and analyzes the images on a single-shot basis. The system is capable of producing, controlling (translation and rotation) and analyzing cold molecular beams at kHz repetition rates and is, therefore, ideally suited for the recording of ultrafast dynamics in so-called "molecular movies".
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subjects Alignment
Image acquisition
Molecular beams
Recording
Repetition
title Strongly aligned and oriented molecular samples at a kHz repetition rate
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