Development Of A Cbgb Source And A Qcl Laser System For Studying The Ir Spectroscopy Of Clusters

Pullen, Gregory T.

Permalink

https://hdl.handle.net/2142/111384 Copy

Description

Title

Development Of A Cbgb Source And A Qcl Laser System For Studying The Ir Spectroscopy Of Clusters

Author(s)

Pullen, Gregory T.

Contributor(s)

• Lewandowski, Heather
• Douberly, Gary E.

Issue Date

2021-06-22

Keyword(s)

Instrument/Technique Demonstration

Abstract

We report progress on the construction and development of a cryogenic buffer gas beam (CBGB) instrument for studying the IR spectroscopy of atomic and molecular clusters. Clusters are produced via laser ablation of a solid target inside the CBGB cell, and the nascent clusters are quickly cooled to the buffer gas temperature before exiting the CBGB cell. Upon exiting the cell, the clusters are probed with $\sim$5 $\mu$m tunable light from a quantum cascade laser (QCL). Light from signal and reference beams each hit detectors, and the difference signal is collected using an autobalanced subtractor circuit to achieve shot-noise limited measurements. Recent developments in the construction of the instrument and spectra measured will be presented.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

Text

Language

eng

Permalink

http://hdl.handle.net/2142/111384

DOI

10.15278/isms.2021.TB10

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