Organic semiconductor distributed feedback laser pixels for lab-on-a-chip applications fabricated by laser-assisted replication

Liu, Xin; Prinz, Stephan; Besser, Heino; Pfleging, Wilhelm; Wissmann, Markus; Vannahme, Christoph; Guttmann, Markus; Mappes, Timo; Koeber, S.; Koos, C.; Lemmer, Uli

doi:10.1039/c4fd00077c

Cited by 12 publications

(5 citation statements)

References 36 publications

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“…The organic laser community has indeed already developed several applications along these lines, often based on potentially low cost lab on a chip laser devices that were produced by thermally imprinting grating structures and that used flexible plastic films as substrates . Laser sources have been implemented in the form of on-chip DFB lasers, , DFB lasers on PMMA substrates for microfluidics, tunable lasers, microgoblets, and switchable dye lasers in microcavity resonators combined with digital microfuidics . Such microfluidic platform devices have potential applications for on chip excitation of fluorescently labeled antibodies and microspheres or for Raman spectroscopy …”

Section: Discussionmentioning

confidence: 99%

Organic Lasers: Recent Developments on Materials, Device Geometries, and Fabrication Techniques

2016

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Organic dyes have been used as gain medium for lasers since the 1960s, long before the advent of today's organic electronic devices. Organic gain materials are highly attractive for lasing due to their chemical tunability and large stimulated emission cross section. While the traditional dye laser has been largely replaced by solid-state lasers, a number of new and miniaturized organic lasers have emerged that hold great potential for lab-on-chip applications, biointegration, low-cost sensing and related areas, which benefit from the unique properties of organic gain materials. On the fundamental level, these include high exciton binding energy, low refractive index (compared to inorganic semiconductors), and ease of spectral and chemical tuning. On a technological level, mechanical flexibility and compatibility with simple processing techniques such as printing, roll-to-roll, self-assembly, and soft-lithography are most relevant. Here, the authors provide a comprehensive review of the developments in the field over the past decade, discussing recent advances in organic gain materials, which are today often based on solid-state organic semiconductors, as well as optical feedback structures, and device fabrication. Recent efforts toward continuous wave operation and electrical pumping of solid-state organic lasers are reviewed, and new device concepts and emerging applications are summarized.

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Section: Discussionmentioning

confidence: 99%

Organic Lasers: Recent Developments on Materials, Device Geometries, and Fabrication Techniques

2016

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“…They achieved low threshold laser (Table 3) by deposition of tris(8-hydroxyquinolinato)aluminum (Alq) doped with 4-dicyanomethylene-2-methyl-6-p-dimethylaminostyryl-4H-pyran (DCM) on a Mylar ® substrate where a Bragg grating was previously patterned by T-NIL. So far, lasing from gain molecules and polymers imprinted on either hard [161][162][163][164] or flexible polymer [165][166][167] substrates yielded lasing threshold lower than 20 kW/cm 2 . A simpler but effective approach to lower PhC laser threshold relies on the imprinting of a resist doped with the gain material.…”

Section: Lasersmentioning

confidence: 98%

Nanoimprint Lithography: Toward Functional Photonic Crystals

Lova

Soci

2015

Organic and Hybrid Photonic Crystals

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In this chapter we review the use of nanoimprint lithography and its derivative soft-lithography techniques for the fabrication of functional photonic crystals. Nanoimprint is a viable, scalable, and cost-effective solution for large area patterning. While initially it relied primarily on pattern transfer from a rigid mold to a thermally softened polymer by embossing, in the last two decades the process evolved rapidly, giving rise to new technologies that allow direct imprint of functional materials such as conjugated polymers, metals, biological matter, and metal oxides. These advancements generated increasing interest in the use of nanoimprint lithography for the fabrication of photonic structures for light management in optoelectronic devices. After describing standard nanoimprint lithography and its derivative soft-lithography methods, we briefly discuss nanoimprint capabilities and prospects in photonic applications. In particular we review recent implementations of imprinted photonic structures for light management in organic light emitting diodes, solar cells, solid state lasers and sensors.

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“…They achieved low threshold laser ( Table 3) by deposition of tris(8-hydroxyquinolinato)aluminum (Alq) doped with 4-dicyanomethylene-2-methyl-6-p-dimethylaminostyryl-4H-pyran (DCM) on a Mylar ® substrate where a Bragg grating was previously patterned by T-NIL. So far, lasing from gain molecules and polymers imprinted on either hard [161][162][163][164] or flexible polymer [165][166][167] substrates yielded lasing threshold lower than 20 kW/cm 2 .…”

Section: Lasersmentioning

confidence: 99%

Organic and Hybrid Photonic Crystals

Comoretto¹

2015

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Organic semiconductor distributed feedback laser pixels for lab-on-a-chip applications fabricated by laser-assisted replication

Cited by 12 publications

References 36 publications

Organic Lasers: Recent Developments on Materials, Device Geometries, and Fabrication Techniques

Organic Lasers: Recent Developments on Materials, Device Geometries, and Fabrication Techniques

Nanoimprint Lithography: Toward Functional Photonic Crystals

Organic and Hybrid Photonic Crystals

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