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L Favaretto - One of the best experts on this subject based on the ideXlab platform.

  • oligomer based organic Distributed Feedback Lasers by room temperature nanoimprint lithography
    Applied Physics Letters, 2003
    Co-Authors: Dario Pisignano, Luana Persano, P Visconti, Roberto Cingolani, Giuseppe Gigli, Giovanna Barbarella, L Favaretto
    Abstract:

    Room-temperature nanoimprint lithography in air is used in order to pattern a nonthermoplastic, low-molar-mass thiophene-based pentamer with excellent gain properties. No degradation of the luminescence efficiency of the active medium was observed after patterning. In this way, we fabricated single-mode emission Distributed Feedback Lasers having a threshold excitation fluence of 140 μJ/cm2. The lasing line is peaked at 637 nm and exhibits a linewidth of less than 0.7 nm and a well-behaved input-output characteristic in the whole range of pump fluences. These results demonstrate room-temperature nanoimprint lithography as powerful and straightforward fabrication technique for oligomer-based nanostructured optoelectronic devices.

Dario Pisignano - One of the best experts on this subject based on the ideXlab platform.

  • Polymeric Distributed Feedback Lasers by room-temperature nanoimprint lithography
    Applied Physics Letters, 2006
    Co-Authors: Elisa Mele, Luana Persano, Roberto Cingolani, Andrea Camposeo, Ripalta Stabile, Pompilio Del Carro, Francesca Di Benedetto, Dario Pisignano
    Abstract:

    Room temperature nanoimprinting lithography is used to realize a Distributed Feedback laser by direct dry pressing of the conjugated polymer (poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene]). The laser device exhibits emission at 630nm with a pump threshold of 25μJ∕cm2 and a polarization contrast of the emitted light as large as 0.91. Therefore, room temperature nanoimprint lithography turns out to be very effective for producing stable patterns on light-emitting polymers for the one-step fabrication of nanopatterned optoelectronic devices.

  • oligomer based organic Distributed Feedback Lasers by room temperature nanoimprint lithography
    Applied Physics Letters, 2003
    Co-Authors: Dario Pisignano, Luana Persano, P Visconti, Roberto Cingolani, Giuseppe Gigli, Giovanna Barbarella, L Favaretto
    Abstract:

    Room-temperature nanoimprint lithography in air is used in order to pattern a nonthermoplastic, low-molar-mass thiophene-based pentamer with excellent gain properties. No degradation of the luminescence efficiency of the active medium was observed after patterning. In this way, we fabricated single-mode emission Distributed Feedback Lasers having a threshold excitation fluence of 140 μJ/cm2. The lasing line is peaked at 637 nm and exhibits a linewidth of less than 0.7 nm and a well-behaved input-output characteristic in the whole range of pump fluences. These results demonstrate room-temperature nanoimprint lithography as powerful and straightforward fabrication technique for oligomer-based nanostructured optoelectronic devices.

Luana Persano - One of the best experts on this subject based on the ideXlab platform.

  • Polymeric Distributed Feedback Lasers by room-temperature nanoimprint lithography
    Applied Physics Letters, 2006
    Co-Authors: Elisa Mele, Luana Persano, Roberto Cingolani, Andrea Camposeo, Ripalta Stabile, Pompilio Del Carro, Francesca Di Benedetto, Dario Pisignano
    Abstract:

    Room temperature nanoimprinting lithography is used to realize a Distributed Feedback laser by direct dry pressing of the conjugated polymer (poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene]). The laser device exhibits emission at 630nm with a pump threshold of 25μJ∕cm2 and a polarization contrast of the emitted light as large as 0.91. Therefore, room temperature nanoimprint lithography turns out to be very effective for producing stable patterns on light-emitting polymers for the one-step fabrication of nanopatterned optoelectronic devices.

  • oligomer based organic Distributed Feedback Lasers by room temperature nanoimprint lithography
    Applied Physics Letters, 2003
    Co-Authors: Dario Pisignano, Luana Persano, P Visconti, Roberto Cingolani, Giuseppe Gigli, Giovanna Barbarella, L Favaretto
    Abstract:

    Room-temperature nanoimprint lithography in air is used in order to pattern a nonthermoplastic, low-molar-mass thiophene-based pentamer with excellent gain properties. No degradation of the luminescence efficiency of the active medium was observed after patterning. In this way, we fabricated single-mode emission Distributed Feedback Lasers having a threshold excitation fluence of 140 μJ/cm2. The lasing line is peaked at 637 nm and exhibits a linewidth of less than 0.7 nm and a well-behaved input-output characteristic in the whole range of pump fluences. These results demonstrate room-temperature nanoimprint lithography as powerful and straightforward fabrication technique for oligomer-based nanostructured optoelectronic devices.

Roberto Cingolani - One of the best experts on this subject based on the ideXlab platform.

  • Polymeric Distributed Feedback Lasers by room-temperature nanoimprint lithography
    Applied Physics Letters, 2006
    Co-Authors: Elisa Mele, Luana Persano, Roberto Cingolani, Andrea Camposeo, Ripalta Stabile, Pompilio Del Carro, Francesca Di Benedetto, Dario Pisignano
    Abstract:

    Room temperature nanoimprinting lithography is used to realize a Distributed Feedback laser by direct dry pressing of the conjugated polymer (poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene]). The laser device exhibits emission at 630nm with a pump threshold of 25μJ∕cm2 and a polarization contrast of the emitted light as large as 0.91. Therefore, room temperature nanoimprint lithography turns out to be very effective for producing stable patterns on light-emitting polymers for the one-step fabrication of nanopatterned optoelectronic devices.

  • oligomer based organic Distributed Feedback Lasers by room temperature nanoimprint lithography
    Applied Physics Letters, 2003
    Co-Authors: Dario Pisignano, Luana Persano, P Visconti, Roberto Cingolani, Giuseppe Gigli, Giovanna Barbarella, L Favaretto
    Abstract:

    Room-temperature nanoimprint lithography in air is used in order to pattern a nonthermoplastic, low-molar-mass thiophene-based pentamer with excellent gain properties. No degradation of the luminescence efficiency of the active medium was observed after patterning. In this way, we fabricated single-mode emission Distributed Feedback Lasers having a threshold excitation fluence of 140 μJ/cm2. The lasing line is peaked at 637 nm and exhibits a linewidth of less than 0.7 nm and a well-behaved input-output characteristic in the whole range of pump fluences. These results demonstrate room-temperature nanoimprint lithography as powerful and straightforward fabrication technique for oligomer-based nanostructured optoelectronic devices.

Frederic Grillo - One of the best experts on this subject based on the ideXlab platform.

  • narrow spectral linewidth in inas inp quantum dot Distributed Feedback Lasers
    Applied Physics Letters, 2018
    Co-Authors: Jiana Dua, Heming Huang, Frederic Grillo, Cheng Wang, P J Poole
    Abstract:

    This paper reports on the spectral linewidth of InAs/InP quantum dot Distributed Feedback Lasers. Owing to a low inversion factor and a low linewidth enhancement factor, a narrow spectral linewidth of 160 kHz (80 kHz intrinsic linewidth) with a low sensitivity to temperature is demonstrated. When using anti-reflection coatings on both facets, narrow linewidth operation is extended to high powers, believed to be due to a reduction in the longitudinal spatial hole burning. These results confirm the high potential of quantum dot Lasers for increasing transmission capacity in future coherent communication systems.This paper reports on the spectral linewidth of InAs/InP quantum dot Distributed Feedback Lasers. Owing to a low inversion factor and a low linewidth enhancement factor, a narrow spectral linewidth of 160 kHz (80 kHz intrinsic linewidth) with a low sensitivity to temperature is demonstrated. When using anti-reflection coatings on both facets, narrow linewidth operation is extended to high powers, believed to be due to a reduction in the longitudinal spatial hole burning. These results confirm the high potential of quantum dot Lasers for increasing transmission capacity in future coherent communication systems.

  • temperature dependence of spectral linewidth of inas inp quantum dot Distributed Feedback Lasers
    Novel In-Plane Semiconductor Lasers XVII, 2018
    Co-Authors: Jiana Dua, Heming Huang, Frederic Grillo, Kevi Schires, Cheng Wang, P J Poole
    Abstract:

    In this paper, we investigate the temperature dependence of spectral linewidth of InAs/InP quantum dot Distributed Feedback Lasers. In comparison with their quantum well counterparts, results show that quantum dot Lasers have spectral linewidths rather insensitive to the temperature with minimum values below 200 kHz in the range of 283K to 303K. The experimental results are also well confirmed by numerical simulations. Overall, this work shows that quantum dot Lasers are excellent candidates for various applications such as coherent communication systems, high-resolution spectroscopy, high purity photonic microwave generation and on-chip atomic clocks.