Abstract

We use a pulsed, frequency tripled picosecond Nd:YAG laser for holographic ablation to pattern a surface relief grating into an organic semiconductor guest-host system. The resulting second order distributed feedback lasers exhibit laser action with laser thresholds being comparable to those obtained with resonators structured by standard lithographic techniques. The details of the interference ablation of tris-(8-hydroxyquinoline) aluminum (Alq3) doped with the laser dye 4-dicyanomethylene-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran (DCM) are presented and discussed. Lasing action is demonstrated at a wavelength of 646.6 nm, exploiting second order Bragg reflection in a relief grating with a period of 399 nm.

© 2007 Optical Society of America

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  1. S. Riechel, C. Kallinger, U. Lemmer, J. Feldmann, A. Gombert, V. Wittwer, and U. Scherf, "A nearly diffraction limited surface emitting conjugated polymer laser utilizing a two-dimensional photonic band structure," Appl. Phys. Lett. 77, 2310-2312 (2000).
    [CrossRef]
  2. T. Ubukata, T. Isoshima, and M. Hara, "Wavelength-programmable organic distributed-feedback laser based on a photoassisted polymer-migration system," Adv. Mater. 17, 1630-1633 (2005).
    [CrossRef]
  3. T. Kavc, G. Langer, W. Kern, G. Kranzelbinder, E. Toussaere, G. A. Turnbull, I. D. W. Samuel, K. F. Iskra, T. Neger, and A. Pogantsch, "Index and relief gratings in polymer films for organic distributed feedback lasers," Chem. Mater. 14, 4178-4185 (2002).
    [CrossRef]
  4. M. Gaal, C. Gadermaier, H. Plank, E. Moderegger, A. Pogantsch, G. Leising and E. J. W. List, "Imprinted conjugated polymer laser," Adv. Mater. 15, 1165-1167 (2003).
    [CrossRef]
  5. D. Pisignano, L. Persano, P. Visconti, R. Cingolani, G. Gigli, G. Barbarella and L. Favaretto, "Oligomer-based organic distributed feedback lasers by room-temperature nanoimprint lithography," Appl. Phys. Lett. 83, 2545-2547 (2003).
    [CrossRef]
  6. M. Ichikawa, Y. Tanaka, N. Suganuma, T. Koyama, and Y. Taniguchi: "Low-threshold photopumped distributed feedback plastic laser made by replica molding," Jpn. J. Appl. Phys. Part 1-Regular Papers Short Notes & Review Papers 42, 5590-5593 (2003).
    [CrossRef]
  7. S. Pissadakis, L. Reekie, M. N. Zervas, J. S. Wilkinson, and G. Kiriakidis: "Gratings in indium oxide film overlayers on ion-exchanged waveguides by excimer laser micromachining," Appl. Phys. Lett. 78, 694-696 (2001).
    [CrossRef]
  8. V. G. Kozlov, V. Bulovic, P. E. Burrows, M. Baldo, V. B. Khalfin, G. Parthasarathy, S. R. Forrest, Y. You and M. E. Thompson: "Study of lasing action based on Forster energy transfer in optically pumped organic semiconductor thin films," J. Appl. Phys. 84, 4096-4108 (1998).
    [CrossRef]
  9. S. Riechel, U. Lemmer, J. Feldmann, S. Berleb, A. G. Muckl, W. Brutting, A. Gombert, and V. Wittwer, "Very compact tunable solid-state laser utilizing a thin-film organic semiconductor," Opt. Lett. 26, 593-595 (2001).
    [CrossRef]
  10. S. Pissadakis, L. Reekie, M. N. Zervas, and J. S. Wilkinson, "Excimer laser inscribed submicron period relief gratings in InOx films and overlaid waveguides," J. Appl. Phys. 95, 1634-1641 (2004).
    [CrossRef]

2005 (1)

T. Ubukata, T. Isoshima, and M. Hara, "Wavelength-programmable organic distributed-feedback laser based on a photoassisted polymer-migration system," Adv. Mater. 17, 1630-1633 (2005).
[CrossRef]

2004 (1)

S. Pissadakis, L. Reekie, M. N. Zervas, and J. S. Wilkinson, "Excimer laser inscribed submicron period relief gratings in InOx films and overlaid waveguides," J. Appl. Phys. 95, 1634-1641 (2004).
[CrossRef]

2003 (2)

M. Gaal, C. Gadermaier, H. Plank, E. Moderegger, A. Pogantsch, G. Leising and E. J. W. List, "Imprinted conjugated polymer laser," Adv. Mater. 15, 1165-1167 (2003).
[CrossRef]

D. Pisignano, L. Persano, P. Visconti, R. Cingolani, G. Gigli, G. Barbarella and L. Favaretto, "Oligomer-based organic distributed feedback lasers by room-temperature nanoimprint lithography," Appl. Phys. Lett. 83, 2545-2547 (2003).
[CrossRef]

2002 (1)

T. Kavc, G. Langer, W. Kern, G. Kranzelbinder, E. Toussaere, G. A. Turnbull, I. D. W. Samuel, K. F. Iskra, T. Neger, and A. Pogantsch, "Index and relief gratings in polymer films for organic distributed feedback lasers," Chem. Mater. 14, 4178-4185 (2002).
[CrossRef]

2001 (2)

S. Riechel, U. Lemmer, J. Feldmann, S. Berleb, A. G. Muckl, W. Brutting, A. Gombert, and V. Wittwer, "Very compact tunable solid-state laser utilizing a thin-film organic semiconductor," Opt. Lett. 26, 593-595 (2001).
[CrossRef]

S. Pissadakis, L. Reekie, M. N. Zervas, J. S. Wilkinson, and G. Kiriakidis: "Gratings in indium oxide film overlayers on ion-exchanged waveguides by excimer laser micromachining," Appl. Phys. Lett. 78, 694-696 (2001).
[CrossRef]

2000 (1)

S. Riechel, C. Kallinger, U. Lemmer, J. Feldmann, A. Gombert, V. Wittwer, and U. Scherf, "A nearly diffraction limited surface emitting conjugated polymer laser utilizing a two-dimensional photonic band structure," Appl. Phys. Lett. 77, 2310-2312 (2000).
[CrossRef]

1998 (1)

V. G. Kozlov, V. Bulovic, P. E. Burrows, M. Baldo, V. B. Khalfin, G. Parthasarathy, S. R. Forrest, Y. You and M. E. Thompson: "Study of lasing action based on Forster energy transfer in optically pumped organic semiconductor thin films," J. Appl. Phys. 84, 4096-4108 (1998).
[CrossRef]

Baldo, M.

V. G. Kozlov, V. Bulovic, P. E. Burrows, M. Baldo, V. B. Khalfin, G. Parthasarathy, S. R. Forrest, Y. You and M. E. Thompson: "Study of lasing action based on Forster energy transfer in optically pumped organic semiconductor thin films," J. Appl. Phys. 84, 4096-4108 (1998).
[CrossRef]

Barbarella, G.

D. Pisignano, L. Persano, P. Visconti, R. Cingolani, G. Gigli, G. Barbarella and L. Favaretto, "Oligomer-based organic distributed feedback lasers by room-temperature nanoimprint lithography," Appl. Phys. Lett. 83, 2545-2547 (2003).
[CrossRef]

Berleb, S.

Brutting, W.

Bulovic, V.

V. G. Kozlov, V. Bulovic, P. E. Burrows, M. Baldo, V. B. Khalfin, G. Parthasarathy, S. R. Forrest, Y. You and M. E. Thompson: "Study of lasing action based on Forster energy transfer in optically pumped organic semiconductor thin films," J. Appl. Phys. 84, 4096-4108 (1998).
[CrossRef]

Burrows, P. E.

V. G. Kozlov, V. Bulovic, P. E. Burrows, M. Baldo, V. B. Khalfin, G. Parthasarathy, S. R. Forrest, Y. You and M. E. Thompson: "Study of lasing action based on Forster energy transfer in optically pumped organic semiconductor thin films," J. Appl. Phys. 84, 4096-4108 (1998).
[CrossRef]

Cingolani, R.

D. Pisignano, L. Persano, P. Visconti, R. Cingolani, G. Gigli, G. Barbarella and L. Favaretto, "Oligomer-based organic distributed feedback lasers by room-temperature nanoimprint lithography," Appl. Phys. Lett. 83, 2545-2547 (2003).
[CrossRef]

Favaretto, L.

D. Pisignano, L. Persano, P. Visconti, R. Cingolani, G. Gigli, G. Barbarella and L. Favaretto, "Oligomer-based organic distributed feedback lasers by room-temperature nanoimprint lithography," Appl. Phys. Lett. 83, 2545-2547 (2003).
[CrossRef]

Feldmann, J.

S. Riechel, U. Lemmer, J. Feldmann, S. Berleb, A. G. Muckl, W. Brutting, A. Gombert, and V. Wittwer, "Very compact tunable solid-state laser utilizing a thin-film organic semiconductor," Opt. Lett. 26, 593-595 (2001).
[CrossRef]

S. Riechel, C. Kallinger, U. Lemmer, J. Feldmann, A. Gombert, V. Wittwer, and U. Scherf, "A nearly diffraction limited surface emitting conjugated polymer laser utilizing a two-dimensional photonic band structure," Appl. Phys. Lett. 77, 2310-2312 (2000).
[CrossRef]

Forrest, S. R.

V. G. Kozlov, V. Bulovic, P. E. Burrows, M. Baldo, V. B. Khalfin, G. Parthasarathy, S. R. Forrest, Y. You and M. E. Thompson: "Study of lasing action based on Forster energy transfer in optically pumped organic semiconductor thin films," J. Appl. Phys. 84, 4096-4108 (1998).
[CrossRef]

Gaal, M.

M. Gaal, C. Gadermaier, H. Plank, E. Moderegger, A. Pogantsch, G. Leising and E. J. W. List, "Imprinted conjugated polymer laser," Adv. Mater. 15, 1165-1167 (2003).
[CrossRef]

Gadermaier, C.

M. Gaal, C. Gadermaier, H. Plank, E. Moderegger, A. Pogantsch, G. Leising and E. J. W. List, "Imprinted conjugated polymer laser," Adv. Mater. 15, 1165-1167 (2003).
[CrossRef]

Gigli, G.

D. Pisignano, L. Persano, P. Visconti, R. Cingolani, G. Gigli, G. Barbarella and L. Favaretto, "Oligomer-based organic distributed feedback lasers by room-temperature nanoimprint lithography," Appl. Phys. Lett. 83, 2545-2547 (2003).
[CrossRef]

Gombert, A.

S. Riechel, U. Lemmer, J. Feldmann, S. Berleb, A. G. Muckl, W. Brutting, A. Gombert, and V. Wittwer, "Very compact tunable solid-state laser utilizing a thin-film organic semiconductor," Opt. Lett. 26, 593-595 (2001).
[CrossRef]

S. Riechel, C. Kallinger, U. Lemmer, J. Feldmann, A. Gombert, V. Wittwer, and U. Scherf, "A nearly diffraction limited surface emitting conjugated polymer laser utilizing a two-dimensional photonic band structure," Appl. Phys. Lett. 77, 2310-2312 (2000).
[CrossRef]

Hara, M.

T. Ubukata, T. Isoshima, and M. Hara, "Wavelength-programmable organic distributed-feedback laser based on a photoassisted polymer-migration system," Adv. Mater. 17, 1630-1633 (2005).
[CrossRef]

Iskra, K. F.

T. Kavc, G. Langer, W. Kern, G. Kranzelbinder, E. Toussaere, G. A. Turnbull, I. D. W. Samuel, K. F. Iskra, T. Neger, and A. Pogantsch, "Index and relief gratings in polymer films for organic distributed feedback lasers," Chem. Mater. 14, 4178-4185 (2002).
[CrossRef]

Isoshima, T.

T. Ubukata, T. Isoshima, and M. Hara, "Wavelength-programmable organic distributed-feedback laser based on a photoassisted polymer-migration system," Adv. Mater. 17, 1630-1633 (2005).
[CrossRef]

Kallinger, C.

S. Riechel, C. Kallinger, U. Lemmer, J. Feldmann, A. Gombert, V. Wittwer, and U. Scherf, "A nearly diffraction limited surface emitting conjugated polymer laser utilizing a two-dimensional photonic band structure," Appl. Phys. Lett. 77, 2310-2312 (2000).
[CrossRef]

Kavc, T.

T. Kavc, G. Langer, W. Kern, G. Kranzelbinder, E. Toussaere, G. A. Turnbull, I. D. W. Samuel, K. F. Iskra, T. Neger, and A. Pogantsch, "Index and relief gratings in polymer films for organic distributed feedback lasers," Chem. Mater. 14, 4178-4185 (2002).
[CrossRef]

Kern, W.

T. Kavc, G. Langer, W. Kern, G. Kranzelbinder, E. Toussaere, G. A. Turnbull, I. D. W. Samuel, K. F. Iskra, T. Neger, and A. Pogantsch, "Index and relief gratings in polymer films for organic distributed feedback lasers," Chem. Mater. 14, 4178-4185 (2002).
[CrossRef]

Khalfin, V. B.

V. G. Kozlov, V. Bulovic, P. E. Burrows, M. Baldo, V. B. Khalfin, G. Parthasarathy, S. R. Forrest, Y. You and M. E. Thompson: "Study of lasing action based on Forster energy transfer in optically pumped organic semiconductor thin films," J. Appl. Phys. 84, 4096-4108 (1998).
[CrossRef]

Kiriakidis, G.

S. Pissadakis, L. Reekie, M. N. Zervas, J. S. Wilkinson, and G. Kiriakidis: "Gratings in indium oxide film overlayers on ion-exchanged waveguides by excimer laser micromachining," Appl. Phys. Lett. 78, 694-696 (2001).
[CrossRef]

Kozlov, V. G.

V. G. Kozlov, V. Bulovic, P. E. Burrows, M. Baldo, V. B. Khalfin, G. Parthasarathy, S. R. Forrest, Y. You and M. E. Thompson: "Study of lasing action based on Forster energy transfer in optically pumped organic semiconductor thin films," J. Appl. Phys. 84, 4096-4108 (1998).
[CrossRef]

Kranzelbinder, G.

T. Kavc, G. Langer, W. Kern, G. Kranzelbinder, E. Toussaere, G. A. Turnbull, I. D. W. Samuel, K. F. Iskra, T. Neger, and A. Pogantsch, "Index and relief gratings in polymer films for organic distributed feedback lasers," Chem. Mater. 14, 4178-4185 (2002).
[CrossRef]

Langer, G.

T. Kavc, G. Langer, W. Kern, G. Kranzelbinder, E. Toussaere, G. A. Turnbull, I. D. W. Samuel, K. F. Iskra, T. Neger, and A. Pogantsch, "Index and relief gratings in polymer films for organic distributed feedback lasers," Chem. Mater. 14, 4178-4185 (2002).
[CrossRef]

Leising, G.

M. Gaal, C. Gadermaier, H. Plank, E. Moderegger, A. Pogantsch, G. Leising and E. J. W. List, "Imprinted conjugated polymer laser," Adv. Mater. 15, 1165-1167 (2003).
[CrossRef]

Lemmer, U.

S. Riechel, U. Lemmer, J. Feldmann, S. Berleb, A. G. Muckl, W. Brutting, A. Gombert, and V. Wittwer, "Very compact tunable solid-state laser utilizing a thin-film organic semiconductor," Opt. Lett. 26, 593-595 (2001).
[CrossRef]

S. Riechel, C. Kallinger, U. Lemmer, J. Feldmann, A. Gombert, V. Wittwer, and U. Scherf, "A nearly diffraction limited surface emitting conjugated polymer laser utilizing a two-dimensional photonic band structure," Appl. Phys. Lett. 77, 2310-2312 (2000).
[CrossRef]

List, E. J. W.

M. Gaal, C. Gadermaier, H. Plank, E. Moderegger, A. Pogantsch, G. Leising and E. J. W. List, "Imprinted conjugated polymer laser," Adv. Mater. 15, 1165-1167 (2003).
[CrossRef]

Moderegger, E.

M. Gaal, C. Gadermaier, H. Plank, E. Moderegger, A. Pogantsch, G. Leising and E. J. W. List, "Imprinted conjugated polymer laser," Adv. Mater. 15, 1165-1167 (2003).
[CrossRef]

Muckl, A. G.

Neger, T.

T. Kavc, G. Langer, W. Kern, G. Kranzelbinder, E. Toussaere, G. A. Turnbull, I. D. W. Samuel, K. F. Iskra, T. Neger, and A. Pogantsch, "Index and relief gratings in polymer films for organic distributed feedback lasers," Chem. Mater. 14, 4178-4185 (2002).
[CrossRef]

Parthasarathy, G.

V. G. Kozlov, V. Bulovic, P. E. Burrows, M. Baldo, V. B. Khalfin, G. Parthasarathy, S. R. Forrest, Y. You and M. E. Thompson: "Study of lasing action based on Forster energy transfer in optically pumped organic semiconductor thin films," J. Appl. Phys. 84, 4096-4108 (1998).
[CrossRef]

Persano, L.

D. Pisignano, L. Persano, P. Visconti, R. Cingolani, G. Gigli, G. Barbarella and L. Favaretto, "Oligomer-based organic distributed feedback lasers by room-temperature nanoimprint lithography," Appl. Phys. Lett. 83, 2545-2547 (2003).
[CrossRef]

Pisignano, D.

D. Pisignano, L. Persano, P. Visconti, R. Cingolani, G. Gigli, G. Barbarella and L. Favaretto, "Oligomer-based organic distributed feedback lasers by room-temperature nanoimprint lithography," Appl. Phys. Lett. 83, 2545-2547 (2003).
[CrossRef]

Pissadakis, S.

S. Pissadakis, L. Reekie, M. N. Zervas, and J. S. Wilkinson, "Excimer laser inscribed submicron period relief gratings in InOx films and overlaid waveguides," J. Appl. Phys. 95, 1634-1641 (2004).
[CrossRef]

S. Pissadakis, L. Reekie, M. N. Zervas, J. S. Wilkinson, and G. Kiriakidis: "Gratings in indium oxide film overlayers on ion-exchanged waveguides by excimer laser micromachining," Appl. Phys. Lett. 78, 694-696 (2001).
[CrossRef]

Plank, H.

M. Gaal, C. Gadermaier, H. Plank, E. Moderegger, A. Pogantsch, G. Leising and E. J. W. List, "Imprinted conjugated polymer laser," Adv. Mater. 15, 1165-1167 (2003).
[CrossRef]

Pogantsch, A.

M. Gaal, C. Gadermaier, H. Plank, E. Moderegger, A. Pogantsch, G. Leising and E. J. W. List, "Imprinted conjugated polymer laser," Adv. Mater. 15, 1165-1167 (2003).
[CrossRef]

T. Kavc, G. Langer, W. Kern, G. Kranzelbinder, E. Toussaere, G. A. Turnbull, I. D. W. Samuel, K. F. Iskra, T. Neger, and A. Pogantsch, "Index and relief gratings in polymer films for organic distributed feedback lasers," Chem. Mater. 14, 4178-4185 (2002).
[CrossRef]

Reekie, L.

S. Pissadakis, L. Reekie, M. N. Zervas, and J. S. Wilkinson, "Excimer laser inscribed submicron period relief gratings in InOx films and overlaid waveguides," J. Appl. Phys. 95, 1634-1641 (2004).
[CrossRef]

S. Pissadakis, L. Reekie, M. N. Zervas, J. S. Wilkinson, and G. Kiriakidis: "Gratings in indium oxide film overlayers on ion-exchanged waveguides by excimer laser micromachining," Appl. Phys. Lett. 78, 694-696 (2001).
[CrossRef]

Riechel, S.

S. Riechel, U. Lemmer, J. Feldmann, S. Berleb, A. G. Muckl, W. Brutting, A. Gombert, and V. Wittwer, "Very compact tunable solid-state laser utilizing a thin-film organic semiconductor," Opt. Lett. 26, 593-595 (2001).
[CrossRef]

S. Riechel, C. Kallinger, U. Lemmer, J. Feldmann, A. Gombert, V. Wittwer, and U. Scherf, "A nearly diffraction limited surface emitting conjugated polymer laser utilizing a two-dimensional photonic band structure," Appl. Phys. Lett. 77, 2310-2312 (2000).
[CrossRef]

Samuel, I. D. W.

T. Kavc, G. Langer, W. Kern, G. Kranzelbinder, E. Toussaere, G. A. Turnbull, I. D. W. Samuel, K. F. Iskra, T. Neger, and A. Pogantsch, "Index and relief gratings in polymer films for organic distributed feedback lasers," Chem. Mater. 14, 4178-4185 (2002).
[CrossRef]

Scherf, U.

S. Riechel, C. Kallinger, U. Lemmer, J. Feldmann, A. Gombert, V. Wittwer, and U. Scherf, "A nearly diffraction limited surface emitting conjugated polymer laser utilizing a two-dimensional photonic band structure," Appl. Phys. Lett. 77, 2310-2312 (2000).
[CrossRef]

Thompson, M. E.

V. G. Kozlov, V. Bulovic, P. E. Burrows, M. Baldo, V. B. Khalfin, G. Parthasarathy, S. R. Forrest, Y. You and M. E. Thompson: "Study of lasing action based on Forster energy transfer in optically pumped organic semiconductor thin films," J. Appl. Phys. 84, 4096-4108 (1998).
[CrossRef]

Toussaere, E.

T. Kavc, G. Langer, W. Kern, G. Kranzelbinder, E. Toussaere, G. A. Turnbull, I. D. W. Samuel, K. F. Iskra, T. Neger, and A. Pogantsch, "Index and relief gratings in polymer films for organic distributed feedback lasers," Chem. Mater. 14, 4178-4185 (2002).
[CrossRef]

Turnbull, G. A.

T. Kavc, G. Langer, W. Kern, G. Kranzelbinder, E. Toussaere, G. A. Turnbull, I. D. W. Samuel, K. F. Iskra, T. Neger, and A. Pogantsch, "Index and relief gratings in polymer films for organic distributed feedback lasers," Chem. Mater. 14, 4178-4185 (2002).
[CrossRef]

Ubukata, T.

T. Ubukata, T. Isoshima, and M. Hara, "Wavelength-programmable organic distributed-feedback laser based on a photoassisted polymer-migration system," Adv. Mater. 17, 1630-1633 (2005).
[CrossRef]

Visconti, P.

D. Pisignano, L. Persano, P. Visconti, R. Cingolani, G. Gigli, G. Barbarella and L. Favaretto, "Oligomer-based organic distributed feedback lasers by room-temperature nanoimprint lithography," Appl. Phys. Lett. 83, 2545-2547 (2003).
[CrossRef]

Wilkinson, J. S.

S. Pissadakis, L. Reekie, M. N. Zervas, and J. S. Wilkinson, "Excimer laser inscribed submicron period relief gratings in InOx films and overlaid waveguides," J. Appl. Phys. 95, 1634-1641 (2004).
[CrossRef]

S. Pissadakis, L. Reekie, M. N. Zervas, J. S. Wilkinson, and G. Kiriakidis: "Gratings in indium oxide film overlayers on ion-exchanged waveguides by excimer laser micromachining," Appl. Phys. Lett. 78, 694-696 (2001).
[CrossRef]

Wittwer, V.

S. Riechel, U. Lemmer, J. Feldmann, S. Berleb, A. G. Muckl, W. Brutting, A. Gombert, and V. Wittwer, "Very compact tunable solid-state laser utilizing a thin-film organic semiconductor," Opt. Lett. 26, 593-595 (2001).
[CrossRef]

S. Riechel, C. Kallinger, U. Lemmer, J. Feldmann, A. Gombert, V. Wittwer, and U. Scherf, "A nearly diffraction limited surface emitting conjugated polymer laser utilizing a two-dimensional photonic band structure," Appl. Phys. Lett. 77, 2310-2312 (2000).
[CrossRef]

You, Y.

V. G. Kozlov, V. Bulovic, P. E. Burrows, M. Baldo, V. B. Khalfin, G. Parthasarathy, S. R. Forrest, Y. You and M. E. Thompson: "Study of lasing action based on Forster energy transfer in optically pumped organic semiconductor thin films," J. Appl. Phys. 84, 4096-4108 (1998).
[CrossRef]

Zervas, M. N.

S. Pissadakis, L. Reekie, M. N. Zervas, and J. S. Wilkinson, "Excimer laser inscribed submicron period relief gratings in InOx films and overlaid waveguides," J. Appl. Phys. 95, 1634-1641 (2004).
[CrossRef]

S. Pissadakis, L. Reekie, M. N. Zervas, J. S. Wilkinson, and G. Kiriakidis: "Gratings in indium oxide film overlayers on ion-exchanged waveguides by excimer laser micromachining," Appl. Phys. Lett. 78, 694-696 (2001).
[CrossRef]

Adv. Mater. (2)

T. Ubukata, T. Isoshima, and M. Hara, "Wavelength-programmable organic distributed-feedback laser based on a photoassisted polymer-migration system," Adv. Mater. 17, 1630-1633 (2005).
[CrossRef]

M. Gaal, C. Gadermaier, H. Plank, E. Moderegger, A. Pogantsch, G. Leising and E. J. W. List, "Imprinted conjugated polymer laser," Adv. Mater. 15, 1165-1167 (2003).
[CrossRef]

Appl. Phys. Lett. (3)

D. Pisignano, L. Persano, P. Visconti, R. Cingolani, G. Gigli, G. Barbarella and L. Favaretto, "Oligomer-based organic distributed feedback lasers by room-temperature nanoimprint lithography," Appl. Phys. Lett. 83, 2545-2547 (2003).
[CrossRef]

S. Pissadakis, L. Reekie, M. N. Zervas, J. S. Wilkinson, and G. Kiriakidis: "Gratings in indium oxide film overlayers on ion-exchanged waveguides by excimer laser micromachining," Appl. Phys. Lett. 78, 694-696 (2001).
[CrossRef]

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[CrossRef]

Chem. Mater. (1)

T. Kavc, G. Langer, W. Kern, G. Kranzelbinder, E. Toussaere, G. A. Turnbull, I. D. W. Samuel, K. F. Iskra, T. Neger, and A. Pogantsch, "Index and relief gratings in polymer films for organic distributed feedback lasers," Chem. Mater. 14, 4178-4185 (2002).
[CrossRef]

J. Appl. Phys. (2)

S. Pissadakis, L. Reekie, M. N. Zervas, and J. S. Wilkinson, "Excimer laser inscribed submicron period relief gratings in InOx films and overlaid waveguides," J. Appl. Phys. 95, 1634-1641 (2004).
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Opt. Lett. (1)

Other (1)

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[CrossRef]

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Figures (6)

Fig. 1.
Fig. 1.

Scheme of the ablation set up. The enlarged part visualizes the definition of the pattern onto the substrate.

Fig. 2.
Fig. 2.

Scheme of the laser characterization set up. For minimizing angle dependent effects, the collected light is focused onto a diffuser screen intermediately.

Fig. 3.
Fig. 3.

Homogenous ablation of 300 nm thick Alq3:DCM layers. The absorption coefficients at the absorption maximum of Alq3 (open symbols) and of DCM (filled symbols) are plotted for ablation fluences of 5 mJ/cm2 (squares), 7 mJ/cm2 (circles) and 13 mJ/cm2 (triangles) in dependence of the number of pulses.

Fig. 4.
Fig. 4.

Measured grating diffraction efficiencies of 175 nm thick Alq3:DCM layers versus energy density of the exposure, for different number of pulses.

Fig. 5.
Fig. 5.

AFM picture of a relief Bragg reflector ablated using 500 pulses and a fluence of 5 mJ/cm2.

Fig. 6.
Fig. 6.

Laser spectrum measured on a 300 nm Alq3:DCM layer with a 399 nm grating ablated with 500 pulses and fluence 5 mJ/cm2 and. Inset: Laser line. The threshold can be identified to 24 nJ.

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