Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Rapid passage signals induced by chirped quantum cascade laser radiation: K state dependent-delay effects in the ν 2 band of NH 3

Not Accessible

Your library or personal account may give you access

Abstract

In this Letter, a 10μm quantum cascade laser operating in the intrapulse mode is used observe rapid passage (RP) effects within a 40cm single-pass gas cell containing low pressures of NH3. The laser tuning range allows the rotational states J=2 with K=0, 1, and 2 to be probed. We show that the RP structures change as a function of optical density and that the magnitude of the delay in the switch from absorption to emission as a function of increased gas pressure is dependent upon the initial value of K. These measurements are qualitatively well modeled using the Maxwell–Bloch equations.

© 2010 Optical Society of America

Full Article  |  PDF Article
More Like This
Rapid passage signals from a vibrationally excited target molecule: a pump and probe experiment with continuous wave quantum cascade lasers

R. J. Walker, J. H. van Helden, J. Kirkbride, E. A. McCormack, M. T. Bell, D. Weidmann, and G. A. D. Ritchie
Opt. Lett. 36(24) 4725-4727 (2011)

Heterodyne frequency measurements of 14NH3 and 15NH3ν2-band transitions

K. J. Siemsen and J. Reid
Opt. Lett. 10(12) 594-596 (1985)

Optical-feedback cavity-enhanced absorption spectroscopy with a quantum cascade laser

G. Maisons, P. Gorrotxategi Carbajo, M. Carras, and D. Romanini
Opt. Lett. 35(21) 3607-3609 (2010)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved