Abstract

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 V0.90. This result is compared with the visibility obtained from a known narrow linewith laser source (V0.95) 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 Δλ11nm. 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

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References

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2006 (2)

F. J. Duarte, L. S. Liao, K. M. Vaeth, and A. M. Miller, J. Opt. A 8, 172 (2006).
[CrossRef]

K. Saxena, D. S. Mehta, R. Srivastava, and M. N. Kamalasanan, Appl. Phys. Lett. 89, 061124 (2006).
[CrossRef]

2005 (2)

2004 (1)

L. S. Liao, K. P. Klubek, and C. W. Tang, Appl. Phys. Lett. 84, 167 (2004).
[CrossRef]

2003 (1)

A. Costela, I. Garcia-Moreno, and R. Sastre, Phys. Chem. Chem. Phys. 5, 4745 (2003).
[CrossRef]

2002 (1)

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]

2000 (1)

G. Kranzelbinder and G. Leising, Rep. Prog. Phys. 63, 729 (2000).
[CrossRef]

1999 (1)

1998 (1)

F. J. Duarte, Am. J. Phys. 66, 662 (1998).
[CrossRef]

1971 (1)

M. Hercher and H. A. Pike, Opt. Commun. 3, 346 (1971).
[CrossRef]

1966 (1)

S. P. Schäfer, W. Schmidt, and J. Volze, Appl. Phys. Lett. 9, 306 (1966).
[CrossRef]

1957 (1)

Bader, C.

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]

Bräuer, A.

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]

Costela, A.

A. Costela, I. Garcia-Moreno, and R. Sastre, Phys. Chem. Chem. Phys. 5, 4745 (2003).
[CrossRef]

Danz, N.

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]

Dharmadhikari, A. K.

Dharmadhikari, J. A.

Dirac, P. A. M.

P. A. M. Dirac, The Principles of Quantum Mechanics, 4th ed. (Oxford, 1978).

Duarte, F. J.

F. J. Duarte, L. S. Liao, K. M. Vaeth, and A. M. Miller, J. Opt. A 8, 172 (2006).
[CrossRef]

F. J. Duarte, L. S. Liao, and K. M. Vaeth, Opt. Lett. 30, 3072 (2005).
[CrossRef] [PubMed]

F. J. Duarte, Appl. Opt. 38, 6347 (1999).
[CrossRef]

F. J. Duarte, Am. J. Phys. 66, 662 (1998).
[CrossRef]

F. J. Duarte, Tunable Laser Optics (Elsevier Academic, 2003).

F. J. Duarte, in High Power Dye Lasers, F.J.Duarte, ed. (Springer, 1991), Chap. 2.

Garcia-Moreno, I.

A. Costela, I. Garcia-Moreno, and R. Sastre, Phys. Chem. Chem. Phys. 5, 4745 (2003).
[CrossRef]

Hercher, M.

M. Hercher and H. A. Pike, Opt. Commun. 3, 346 (1971).
[CrossRef]

Holzer, W.

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]

Hörhold, H. H.

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]

Kamalasanan, M. N.

K. Saxena, D. S. Mehta, R. Srivastava, and M. N. Kamalasanan, Appl. Phys. Lett. 89, 061124 (2006).
[CrossRef]

Kley, E. B.

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]

Klubek, K. P.

L. S. Liao, K. P. Klubek, and C. W. Tang, Appl. Phys. Lett. 84, 167 (2004).
[CrossRef]

Kranzelbinder, G.

G. Kranzelbinder and G. Leising, Rep. Prog. Phys. 63, 729 (2000).
[CrossRef]

Kumar, G. R.

Lau, K. Y.

K. Y. Lau, in Quantum Well Lasers, P.S.Zory, ed. (Academic, 1993), Chap. 4.

Leising, G.

G. Kranzelbinder and G. Leising, Rep. Prog. Phys. 63, 729 (2000).
[CrossRef]

Liao, L. S.

F. J. Duarte, L. S. Liao, K. M. Vaeth, and A. M. Miller, J. Opt. A 8, 172 (2006).
[CrossRef]

F. J. Duarte, L. S. Liao, and K. M. Vaeth, Opt. Lett. 30, 3072 (2005).
[CrossRef] [PubMed]

L. S. Liao, K. P. Klubek, and C. W. Tang, Appl. Phys. Lett. 84, 167 (2004).
[CrossRef]

Mehta, D. S.

K. Saxena, D. S. Mehta, R. Srivastava, and M. N. Kamalasanan, Appl. Phys. Lett. 89, 061124 (2006).
[CrossRef]

Michelson, A. A.

A. A. Michelson, Studies in Optics (University of Chicago, 1927).

Miller, A. M.

F. J. Duarte, L. S. Liao, K. M. Vaeth, and A. M. Miller, J. Opt. A 8, 172 (2006).
[CrossRef]

Penzkofer, A.

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]

Pertsch, T.

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]

Pike, H. A.

M. Hercher and H. A. Pike, Opt. Commun. 3, 346 (1971).
[CrossRef]

Sastre, R.

A. Costela, I. Garcia-Moreno, and R. Sastre, Phys. Chem. Chem. Phys. 5, 4745 (2003).
[CrossRef]

Saxena, K.

K. Saxena, D. S. Mehta, R. Srivastava, and M. N. Kamalasanan, Appl. Phys. Lett. 89, 061124 (2006).
[CrossRef]

Schäfer, S. P.

S. P. Schäfer, W. Schmidt, and J. Volze, Appl. Phys. Lett. 9, 306 (1966).
[CrossRef]

Schmidt, W.

S. P. Schäfer, W. Schmidt, and J. Volze, Appl. Phys. Lett. 9, 306 (1966).
[CrossRef]

Srivastava, R.

K. Saxena, D. S. Mehta, R. Srivastava, and M. N. Kamalasanan, Appl. Phys. Lett. 89, 061124 (2006).
[CrossRef]

Tang, C. W.

L. S. Liao, K. P. Klubek, and C. W. Tang, Appl. Phys. Lett. 84, 167 (2004).
[CrossRef]

Thompson, B. J.

Tillmann, H.

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]

Vaeth, K. M.

F. J. Duarte, L. S. Liao, K. M. Vaeth, and A. M. Miller, J. Opt. A 8, 172 (2006).
[CrossRef]

F. J. Duarte, L. S. Liao, and K. M. Vaeth, Opt. Lett. 30, 3072 (2005).
[CrossRef] [PubMed]

Volze, J.

S. P. Schäfer, W. Schmidt, and J. Volze, Appl. Phys. Lett. 9, 306 (1966).
[CrossRef]

Wolf, E.

Am. J. Phys. (1)

F. J. Duarte, Am. J. Phys. 66, 662 (1998).
[CrossRef]

Appl. Opt. (1)

Appl. Phys. B. (1)

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]

Appl. Phys. Lett. (3)

L. S. Liao, K. P. Klubek, and C. W. Tang, Appl. Phys. Lett. 84, 167 (2004).
[CrossRef]

S. P. Schäfer, W. Schmidt, and J. Volze, Appl. Phys. Lett. 9, 306 (1966).
[CrossRef]

K. Saxena, D. S. Mehta, R. Srivastava, and M. N. Kamalasanan, Appl. Phys. Lett. 89, 061124 (2006).
[CrossRef]

J. Opt. A (1)

F. J. Duarte, L. S. Liao, K. M. Vaeth, and A. M. Miller, J. Opt. A 8, 172 (2006).
[CrossRef]

J. Opt. Soc. Am. (1)

Opt. Commun. (1)

M. Hercher and H. A. Pike, Opt. Commun. 3, 346 (1971).
[CrossRef]

Opt. Lett. (2)

Phys. Chem. Chem. Phys. (1)

A. Costela, I. Garcia-Moreno, and R. Sastre, Phys. Chem. Chem. Phys. 5, 4745 (2003).
[CrossRef]

Rep. Prog. Phys. (1)

G. Kranzelbinder and G. Leising, Rep. Prog. Phys. 63, 729 (2000).
[CrossRef]

Other (5)

K. Y. Lau, in Quantum Well Lasers, P.S.Zory, ed. (Academic, 1993), Chap. 4.

A. A. Michelson, Studies in Optics (University of Chicago, 1927).

F. J. Duarte, Tunable Laser Optics (Elsevier Academic, 2003).

F. J. Duarte, in High Power Dye Lasers, F.J.Duarte, ed. (Springer, 1991), Chap. 2.

P. A. M. Dirac, The Principles of Quantum Mechanics, 4th ed. (Oxford, 1978).

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Figures (2)

Fig. 1
Fig. 1

(a) Electrically excited tandem organic semiconductor (OS) configured with two spatial filters in series (see text) that comprise the DICOS device. The optical axis and direction of the emission, orthogonal to the interferometric plane x, is depicted by the left-to-right arrow. (b) The DICOS device configured with the two-slit interferometer. The source is s, the slit array is j, and the interference plane is x. The j to x distance is denoted by z.

Fig. 2
Fig. 2

(a) Digital profile of the two-slit interference[5] resulting from illumination with the electrically excited DICOS configured as illustrated in Fig. 1b. Background signal variations are due to detector noise. (b) Digital profile of the two-slit interference resulting from the illumination with a beam-expanded He–Ne laser at λ 543.3 nm . In both cases the slits, at j, are 50 μ m wide, separated by 50 μ m , and z = 50 mm .

Tables (1)

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Table 1 Measured Visibility of Double-Slit Interferograms

Equations (2)

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V = [ I 1 ( x ) I 2 ( x ) ] [ I 1 ( x ) + I 2 ( x ) ] ,
x s 2 = j = 1 N Ψ ( r j ) 2 + 2 j = 1 N Ψ ( r j ) ( m = j + 1 N Ψ ( r m ) cos ( Ω m Ω j ) ) ,

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