English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We study laser cooling of atomic gases by collisional redistribution offluorescence. In a high pressure buffer gas regime, frequent collisions perturbthe energy levels of alkali atoms, which allows for the absorption of a far reddetuned irradiated laser beam. Subsequent spontaneous decay occurs close to theunperturbed resonance frequency, leading to a cooling of the dense gas mixtureby redistribution of fluorescence. Thermal deflection spectroscopy indicateslarge relative temperature changes down to and even below room temperaturestarting from an initial cell temperature near 700 K. We are currentlyperforming a detailed analysis of the temperature distribution in the cell. Aswe expect this cooling technique to work also for molecular-noble gas mixtures,we also present initial spectroscopic experiments on alkali-dimers in a densebuffer gas surrounding.

proceedings of spie, the international society for optical engineering/proceedings of spie

Laser cooling of dense atomic gases by collisional redistribution of  radiation and spectroscopy of molecular dimers in a dense buffer gas  environment