Angular Scattering Distribution By Doppler Spectroscopy: <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi mathvariant="normal">Na</mi><mo>(</mo><mn>3</mn><mn></mn><mrow><msub><mrow><mi>P</mi></mrow><mrow><mfrac><mrow><mn>1</mn></mrow><mrow><mn>2</mn></mrow></mfrac></mrow></msub></mrow><mo>)</mo><mo>+</mo><mi mathvariant="normal">Ar</mi><mo>→</mo><mi mathvariant="normal">Na</mi><mo>(</mo><mn>3</mn><mn></mn><mrow><msub><mrow><mi>P</mi></mrow><mrow><mfrac><mrow><mn>3</mn></mrow><mrow><mn>2</mn></mrow></mfrac></mrow></msub></mrow><mo>)</mo><mo>+</mo><mi mathvariant="normal">Ar</mi></math></span>

William D. Phillips; John A. Serri; Douglas J. Ely; David E. Pritchard; Kermit R. Way; James L. Kinsey

doi:10.1103/PhysRevLett.41.937

Angular Scattering Distribution By Doppler Spectroscopy: $Na (3 P_{\frac{1}{2}}) + Ar \to Na (3 P_{\frac{3}{2}}) + Ar$

William D. Phillips, John A. Serri, Douglas J. Ely, David E. Pritchard, Kermit R. Way, and James L. Kinsey

Phys. Rev. Lett. 41, 937 – Published 2 October 1978

Abstract

We have developed a new method for determining state-resolved differential cross sections in inelastic collisions. A single-frequency laser provides level-specific detection of scattered atoms, while the Doppler shift of the same laser provides a completely non-mechanical angular selectivity in the detection. We have used this technique to make the first measurement of an alkali fine-structure transfer cross section in which both the scattering angle and final state are determined.

Received 21 July 1978

DOI:https://doi.org/10.1103/PhysRevLett.41.937

Authors & Affiliations

William D. Phillips^*, John A. Serri, Douglas J. Ely, and David E. Pritchard

Department of Physics and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139

Kermit R. Way^† and James L. Kinsey

Department of Chemistry and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139

^*Present address: National Bureau of Standards, Washington, D. C. 20234.
^†Present address: Department of Chemistry, Carthage College, Kenosha, Wisc. 53141.