OSA's Digital Library

Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 4 — Feb. 15, 2007
  • pp: 412–414

Coherent electrically excited organic semiconductors: visibility of interferograms and emission linewidth

F. J. Duarte  »View Author Affiliations

Optics Letters, Vol. 32, Issue 4, pp. 412-414 (2007)

View Full Text Article

Enhanced HTML    Acrobat PDF (159 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



Recently, a tandem organic light-emitting diode structure, excited electrically in the pulsed domain and confined within a double interferometric configuration, was observed to emit a low-divergence beam ( 1.1 times the diffraction limit) with a near-Gaussian spatial distribution. The emission originates from the laser dye Coumarin 545 T used as dopant. It has since been determined that the visibility of the interferograms, from the spatially coherent emission, is V 0.90 . This result is compared with the visibility obtained from a known narrow linewith laser source ( V 0.95 ) and with various published values from the relevant literature. The significance of this result is discussed in addition to an interferometric estimate of the emission linewidth that yields Δ λ 11 nm . The present interferometric analysis indicates that the spectral component of the spatially coherent radiation is comparable with the spectral characteristics of well-known broadband dye lasers.

© 2007 Optical Society of America

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(230.3670) Optical devices : Light-emitting diodes
(260.3160) Physical optics : Interference
(350.5500) Other areas of optics : Propagation

ToC Category:
Optical Devices

Original Manuscript: October 20, 2006
Revised Manuscript: November 9, 2006
Manuscript Accepted: November 9, 2006
Published: January 26, 2007

F. J. Duarte, "Coherent electrically excited organic semiconductors: visibility of interferograms and emission linewidth," Opt. Lett. 32, 412-414 (2007)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. G. Kranzelbinder and G. Leising, Rep. Prog. Phys. 63, 729 (2000). [CrossRef]
  2. A. Costela, I. Garcia-Moreno, and R. Sastre, Phys. Chem. Chem. Phys. 5, 4745 (2003). [CrossRef]
  3. F. J. Duarte, Appl. Opt. 38, 6347 (1999). [CrossRef]
  4. W. Holzer, A. Penzkofer, T. Pertsch, N. Danz, A. Bräuer, E. B. Kley, H. Tillmann, C. Bader, and H. H. Hörhold, Appl. Phys. B. 74, 333 (2002). [CrossRef]
  5. F. J. Duarte, L. S. Liao, and K. M. Vaeth, Opt. Lett. 30, 3072 (2005). [CrossRef] [PubMed]
  6. L. S. Liao, K. P. Klubek, and C. W. Tang, Appl. Phys. Lett. 84, 167 (2004). [CrossRef]
  7. F. J. Duarte, L. S. Liao, K. M. Vaeth, and A. M. Miller, J. Opt. A 8, 172 (2006). [CrossRef]
  8. K. Y. Lau, in Quantum Well Lasers, P.S.Zory, ed. (Academic, 1993), Chap. 4.
  9. A. A. Michelson, Studies in Optics (University of Chicago, 1927).
  10. K. Saxena, D. S. Mehta, R. Srivastava, and M. N. Kamalasanan, Appl. Phys. Lett. 89, 061124 (2006). [CrossRef]
  11. B. J. Thompson and E. Wolf, J. Opt. Soc. Am. 47, 895 (1957). [CrossRef]
  12. J. A. Dharmadhikari, A. K. Dharmadhikari, and G. R. Kumar, Opt. Lett. 30, 765 (2005). [CrossRef] [PubMed]
  13. F. J. Duarte, Tunable Laser Optics (Elsevier Academic, 2003).
  14. F. J. Duarte, in High Power Dye Lasers, F.J.Duarte, ed. (Springer, 1991), Chap. 2.
  15. P. A. M. Dirac, The Principles of Quantum Mechanics, 4th ed. (Oxford, 1978).
  16. F. J. Duarte, Am. J. Phys. 66, 662 (1998). [CrossRef]
  17. S. P. Schäfer, W. Schmidt, and J. Volze, Appl. Phys. Lett. 9, 306 (1966). [CrossRef]
  18. M. Hercher and H. A. Pike, Opt. Commun. 3, 346 (1971). [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