OSA's Digital Library

Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 16 — Aug. 15, 2010
  • pp: 2750–2752

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

J. H. Northern, G. A. D. Ritchie, E. P. Smakman, J. H. van Helden, J. Cockburn, and G. Duxbury  »View Author Affiliations


Optics Letters, Vol. 35, Issue 16, pp. 2750-2752 (2010)
http://dx.doi.org/10.1364/OL.35.002750


View Full Text Article

Enhanced HTML    Acrobat PDF (405 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

In this Letter, a 10 μm quantum cascade laser operating in the intrapulse mode is used observe rapid passage (RP) effects within a 40 cm single-pass gas cell containing low pressures of NH 3 . 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

OCIS Codes
(020.1670) Atomic and molecular physics : Coherent optical effects
(020.3690) Atomic and molecular physics : Line shapes and shifts
(300.6360) Spectroscopy : Spectroscopy, laser

ToC Category:
Atomic and Molecular Physics

History
Original Manuscript: May 3, 2010
Revised Manuscript: July 14, 2010
Manuscript Accepted: July 15, 2010
Published: August 12, 2010

Citation
J. H. Northern, G. A. D. Ritchie, E. P. Smakman, J. H. van Helden, J. Cockburn, and G. Duxbury, "Rapid passage signals induced by chirped quantum cascade laser radiation: K state dependent-delay effects in the ν2 band of NH3," Opt. Lett. 35, 2750-2752 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-16-2750


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. M. M. T. Loy, Phys. Rev. Lett. 32, 814 (1974). [CrossRef]
  2. M. T. McCulloch, G. Duxbury, and N. Langford, Mol. Phys. 104, 2767 (2006). [CrossRef]
  3. G. Duxbury, N. Langford, M. T. McCulloch, and S. Wright, Mol. Phys. 105, 741 (2007). [CrossRef]
  4. J. H. van Helden, S. J. Horrocks, and G. A. D. Ritchie, Appl. Phys. Lett. 92, 081506 (2008). [CrossRef]
  5. J. H. van Helden, R. Peverall, G. A. D. Ritchie, and R. J. Walker, Appl. Phys. Lett. 94, 051116 (2009). [CrossRef]
  6. S. Welzel, L. Gatilova, J. Röpcke, and A. Rousseau, Plasma Sources Sci. Technol. 16, 822 (2007). [CrossRef]
  7. M. T. McCulloch, E. L. Normand, N. Langford, G. Duxbury, and D. A. Newnham, J. Opt. Soc. Am. B 20, 1761 (2003). [CrossRef]
  8. M. T. McCulloch, N. Langford, and G. Duxbury, Appl. Opt. 44, 2887 (2005). [CrossRef] [PubMed]
  9. B. Grouiez, B. Parvitte, L. Joly, and V. Zeninari, Opt. Lett. 34, 181 (2009). [CrossRef] [PubMed]
  10. G. Duxbury, N. Langford, and K. Hay, J. Mod. Opt. 55, 3293 (2008). [CrossRef]
  11. The HITRAN Database, www.hitran.com.
  12. V. Nemtchinov, K. Sung, and P. Varanasi, J. Quant. Spectrosc. Radiat. Transfer 83, 243 (2004). [CrossRef]
  13. L. Allen and J. H. Eberly, Optical Resonance and Two Level Atoms (Dover, 1975).
  14. C. H. Townes and A. L. Schawlow, Microwave Spectroscopy (Dover, 1975).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

Figures

Fig. 1 Fig. 2 Fig. 3
 
Fig. 4
 

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited