LASER SPECTROSCOPY OF RADICALS, CARBENES, AND IONS IN SUPERFLUID HELIUM DROPLETS

Douberly, Gary E.

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https://hdl.handle.net/2142/79345 Copy

Description

Title

LASER SPECTROSCOPY OF RADICALS, CARBENES, AND IONS IN SUPERFLUID HELIUM DROPLETS

Author(s)

Douberly, Gary E.

Issue Date

24-Jun-15

Keyword(s)

Plenary

Abstract

"begin{wrapfigure}{r}{0pt} includegraphics[scale=0.8]{fig.eps} end{wrapfigure} The first beam of helium droplets was reported in the 1961 paper textit{Strahlen aus kondensiertem Helium im Hochvakuum} by Von E. W. Becker and co-workers.footnote{E. W. Becker, R. Klingelh\""{o}fer, P. Lohse, textit{Z. Naturforsch. A} textbf{16A}, 1259 (1961).} However, molecular spectroscopy of helium-solvated dopants wasn't realized until 30 years later in the laboratories of Scoles and Toennies.footnote{S. Goyal, D. L. Schutt, G. Scoles, textit{Phys. Rev. Lett.} textbf{69}, 933 (1992).}$^{,}$footnote{M. Hartmann, R. E. Miller, J. P. Toennies, A. F. Vilesov, textit{Phys. Rev. Lett.} textbf{75}, 1566 (1995).} It has now been two decades since this early, seminal work on doped helium droplets, yet the field of helium droplet spectroscopy is still fresh with vast potential. Analogous in many ways to cryogenic matrix isolation spectroscopy, the helium droplet is an ideal environment to spectroscopically probe difficult to prepare molecular species, such as radicals, carbenes and ions. The quantum nature of helium at 0.35 K often results in molecular spectra that are sufficiently resolved to evoke an analysis of line shapes and fine-structure that is worthy of the International Symposium on Molecular Spectroscopy. The present talk will focus on our recent successful attempts to efficiently dope the title molecular species into helium droplets and probe their properties with infrared laser Stark and Zeeman spectroscopies."

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

English

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http://hdl.handle.net/2142/79345

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