Mechanically Flexible Organic Semiconductor Laser Array

Guilhabert, Benoit; Laurand, N.; Herrnsdorf, Johannes; Chen, Y.; Kanibolotsky, Alexander L.; Orofino, C.; Skabara, Peter J.; Dawson, Martin D.

doi:10.1109/jphot.2012.2195651

Cited by 10 publications

(7 citation statements)

References 16 publications

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“…146 In addition, arrays of DFB lasers with different grating periods were defined within a common mechanically flexible substrate and tuning of laser wavelength by mechanical flexing was again observed. 147 Very recently, the concept was extended further by inscribing DFB gratings into shape memory materials. This facilitated a permanent adjustment of the laser wavelength by non-elastic mechanical stretching of the substrate (Figure 7d-e).…”

Section: One Dimensional Dfb Structuresmentioning

confidence: 99%

“…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 292 and that used flexible plastic films as substrates. 147 Laser sources have been implemented in the form of on-chip DFB lasers, 293,294 DFB lasers on PMMA substrates for microfluidics, 295 tunable lasers, 296 microgoblets, 297 and switchable dye lasers in microcavity resonators combined with digital microfuidics. 209 Such microfluidic platform devices have potential applications for on chip excitation of fluorescently labeled antibodies and microspheres or for Raman spectroscopy.…”

Section: Applications Of Organic Lasersmentioning

confidence: 99%

“…In other work, the DFB gratings were defined by self-wrinkling that occurred after surface oxidization of a prestretched PDMS layer (Figure , panels a–c) . In addition, arrays of DFB lasers with different grating periods were defined within a common mechanically flexible substrate and tuning of laser wavelength by mechanical flexing was again observed . Very recently, the concept was extended further by inscribing DFB gratings into shape memory materials.…”

Section: Optical Feedback Structuresmentioning

confidence: 99%

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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: One Dimensional Dfb Structuresmentioning

confidence: 99%

Section: Applications Of Organic Lasersmentioning

confidence: 99%

Section: Optical Feedback Structuresmentioning

confidence: 99%

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

2016

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“…OS lasers in such a geometry, which are compatible for integration with arrays of InGaN light-emitting diode excitation sources, have been demonstrated. 27 Another method of spatial multiplexing is to functionalise a single OS laser, featuring a wide sensing area, with different molecular probes at different positions. Again, OS lasers are well-suited for this as their active sensing area can be scaled from below 1 mm 2 up to several cm 2 .…”

Section: Faraday Discussion Papermentioning

confidence: 99%

Hybrid organic semiconductor lasers for bio-molecular sensing

et al. 2014

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Bio-functionalised luminescent organic semiconductors are attractive for biophotonics because they can act as efficient laser materials while simultaneously interacting with molecules. In this paper, we present and discuss a laser biosensor platform that utilises a gain layer made of such an organic semiconductor material. The simple structure of the sensor and its operation principle are described. Nanolayer detection is shown experimentally and analysed theoretically in order to assess the potential and the limits of the biosensor. The advantage conferred by the organic semiconductor is explained, and comparisons to laser sensors using alternative dye-doped materials are made. Specific biomolecular sensing is demonstrated, and routes to functionalisation with nucleic acid probes, and future developments opened up by this achievement, are highlighted. Finally, attractive formats for sensing applications are mentioned, as well as colloidal quantum dots, which in the future could be used in conjunction with organic semiconductors.

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confidence: 99%

Star-shaped oligofluorene truxene macromolecules – synthesis and properties as a function of alkyl chain length

Orofino¹,

Kanibolotsky²,

Skabara³

2021

Arkivoc

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Star-shaped oligofluorene truxenes are very promising materials and have demonstrated excellent properties as the gain medium in organic semiconductor lasers (OSLs). [1][2][3][4][5][6][7][8][9][10] Alkyl chains in oligofluorene truxenes act as solubilizing groups as well as spacers to prevent intermolecular π-π stacking that leads to quenching of the light emission. A new series of star-shaped systems analogous to hexyl oligofluorene truxenes 11 with alkyl chains of different lengths (butyl chains and octyl chains) was synthesized. The objective of this study was to investigate the effect of alkyl chain length on the film-forming properties of oligofluorene-truxene materials and, as a result, on their optoelectronic properties for applications as the gain medium in OSLs.

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Mechanically Flexible Organic Semiconductor Laser Array

Cited by 10 publications

References 16 publications

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

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

Hybrid organic semiconductor lasers for bio-molecular sensing

Star-shaped oligofluorene truxene macromolecules – synthesis and properties as a function of alkyl chain length

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