OSA's Digital Library

Optics Letters

Optics Letters


  • Vol. 4, Iss. 9 — Sep. 1, 1979
  • pp: 280–282

High performance at new FIR wavelengths from optically pumped CH2F2

E. J. Danielewicz, T. A. Galantowicz, F. B. Foote, R. D. Reel, and D. T. Hodges  »View Author Affiliations

Optics Letters, Vol. 4, Issue 9, pp. 280-282 (1979)

View Full Text Article

Enhanced HTML    Acrobat PDF (419 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



A parametric study to clarify efficiency limiting mechanisms and to maximize the performance of the CH2F2 laser has led to the discovery of five new CO2 pump lines and ten new FIR laser lines. The wavelengths of the new lines fill a previous gap in the spectrum of strong cw FIR laser lines. With appropriate cavity design, measured conversion efficiencies exceed 30% of the maximum theoretical limit. Optimization of the output coupling for the strongest line at λ = 184.6 μm has doubled the maximum output power from the identical system using the λ = 118.8-μm line of CH3OH. The exceptionally high conversion efficiency (33%) occurring at the highest-available CO2 pump power indicates that the limits on scaling to higher output powers have not yet been reached. The results confirm the high-performance capability of the CH2F2 laser, the strongest cw optically pumped FIR laser reported to date.

© 1979 Optical Society of America

Original Manuscript: May 1, 1979
Published: September 1, 1979

E. J. Danielewicz, T. A. Galantowicz, F. B. Foote, R. D. Reel, and D. T. Hodges, "High performance at new FIR wavelengths from optically pumped CH2F2," Opt. Lett. 4, 280-282 (1979)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. E. J. Danielewicz, C. O. Weiss, “New efficient cw far-infrared optically pumped CH2F2 laser,” IEEE J. Quantum Electron. QE-14, 705–707 (1978). [CrossRef]
  2. T. A. Galantowicz, E. J. Danielewicz, F. B. Foote, D. T. Hodges, “Characteristics of non-diffusion-limited optically pumped cw lasers—experimental results for CH2F2,” in Proceedings of the International Conference on Lasers ’78, V. J. Corcoran, ed. (STS Press, McLean, Virginia, 1979).
  3. D. T. Hodges, “A review of advances in optically pumped FIR lasers,” Infrared Phys. 18, 375–384 (1978). [CrossRef]
  4. D. T. Hodges, F. B. Foote, R. D. Reel, “Efficient high-power operation of the cw far-infrared waveguide laser,” Appl. Phys. Lett. 29, 662–664 (1976). [CrossRef]
  5. D. T. Hodges, F. B. Foote, R. D. Reel, “High-power operation and scaling behavior of cw optically pumped FIR waveguide lasers,” IEEE J. Quantum Electron. QE-13, 491–494 (1977). [CrossRef]
  6. A. Scalabrin, K. M. Evenson, “Additional cw FIR laser lines from optically pumped CH2F2,” Opt. Lett. 4, 277 (1979). [CrossRef] [PubMed]
  7. G. Busse, R. Thurmaier, “Use of the opto-acoustic effect to discover cw far-infrared laser lines, ” Appl. Phys. Lett. 31, 194–195 (1977). [CrossRef]
  8. K. Walzer, M. Tacke, G. Busse, “Opto-acoustic spectra of some FIR-laser active molecules,” Infrared Phys. 19, 175–177 (1979). [CrossRef]
  9. F. B. Foote, D. T. Hodges, “Absolute power measurements from 100 to 200 μm using common laboratory detectors,” Infrared Phys., to be published.
  10. T. A. DeTemple, S. A. Lawton, “The identification of candidate transitions for optically pumped far infrared lasers, methyl halides and D2O,” IEEE J. Quantum Electron. QE-14, 762–768 (1978). [CrossRef]

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.


Fig. 1 Fig. 2

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited