Organic copolymer lasing from single defect microcavity fabricated using laser patterning

Claronino, Peter; Jayaprakash, Rahul; Jessewitsch, Till; Kilbride, Rachel C.; Thornber, Timothy; Muravitskaya, Alina; Oliver, Robert D. J.; Scherf, Ullrich; Bouillard, Jean‐Sebastien G.; Adawi, Ali M.; Lidzey, David G.

doi:10.1039/d2tc05360h

Cited by 2 publications

(3 citation statements)

References 58 publications

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“…These are all characteristic of photon lasing as well, and as such, they are not necessarily sufficient to identify the origin of these phenomena as polariton condensation. 172,180 In Fabry-P erot cavities, for example, it is frequently ambiguous whether lasing proceeds through the uncoupled photon mode or the LP and distinguishing between these remains a major challenge for the field. In some devices, both polariton and photon lasing have been observed, such as in the case of green fluorescent protein or GaAs/GaAlAs quantum wells.…”

Section: B Identifying Condensationmentioning

confidence: 99%

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Embrace the darkness: An experimental perspective on organic exciton–polaritons

Khazanov,

Gunasekaran,

George

et al. 2023

Chemical Physics Reviews

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Organic polaritonics has emerged as a captivating interdisciplinary field that marries the complexities of organic photophysics with the fundamental principles of quantum optics. By harnessing strong light–matter coupling in organic materials, exciton–polaritons offer unique opportunities for advanced device performance, including enhanced energy transport and low-threshold lasing, as well as new functionalities like polariton chemistry. In this review, we delve into the foundational principles of exciton–polaritons from an experimental perspective, highlighting the key states, processes, and timescales that govern polariton phenomena. Our review centers on the spectroscopy of exciton–polaritons. We overview the primary spectroscopic approaches that reveal polariton phenomena, and we discuss the challenges in disentangling polaritonic signatures from spectral artifacts. We discuss how organic materials, due to their complex photophysics and disordered nature, not only present challenges to the conventional polariton models but also provide opportunities for new physics, like manipulating dark electronic states. As the research field continues to grow, with increasingly complex materials and devices, this review serves as a valuable introductory guide for researchers navigating the intricate landscape of organic polaritonics.

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Section: B Identifying Condensationmentioning

confidence: 99%

“…191 Though the mechanism of this phenomenon is not well understood, it may be uniquely polaritonic in origin as the linewidth broadening appears to be negligible in comparison during photon lasing. 180,192…”

Section: B Identifying Condensationmentioning

confidence: 99%

Embrace the darkness: An experimental perspective on organic exciton–polaritons

Khazanov,

Gunasekaran,

George

et al. 2023

Chemical Physics Reviews

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show abstract

“…Organic light-emitting diodes (OLEDs) have attracted extensive research interests due to their applications in efficient full-color displays, , solid-state lighting, − and liquid-crystal display backlighting sources. − OLEDs have multifold advantages, such as excellent flexibility, positive luminescence, simple preparation process, large-area devices, and a large variety of material availability. − Although efficient OLEDs have been reported for a large variety of organic semiconductors and structural designs, and optically pumped microcavity lasers have been achieved with low thresholds, − electrically pumped organic lasers have not been officially reported. Reasons may include the lower injection current than the threshold required by the lasing actions, and the designed structures cannot supply sufficiently high efficiency of optical confinement and optical gain.…”

mentioning

confidence: 99%

Selective Gain in a Periodic Array of Nano-organic Light-Emitting Diodes

Wu,

Liu,

Zhang

2023

J. Phys. Chem. Lett.

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We report nanoscale organic light-emitting diodes (OLEDs) arranged periodically into a large-area array, which produces an amplified emission with a selected spectrum in a narrow band. These nano-OLEDs share a common active layer of super yellow light-emitting PPV copolymer (SY-PPV), which acts both as a waveguide and as a gain channel for the light-emitting signals. The periodic structure supplies Bragg-like diffraction of the emission from SY-PPV under electrical excitation so that the electroluminescence signal is coupled into and confined in the SY-PPV waveguide. During propagation, the waveguide resonance mode interacts with the nano-OLED region and gains amplification. Both the waveguide resonance mode and the output coupling process have strong spectral selectivity, so that the amplification is observed within a spectrum as narrow as 32 nm at FWHM. Such a nano-OLED design not only defines a new scheme of nano-OLEDs, but also proposes potential approaches for electrically pumped organic lasers.

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Organic copolymer lasing from single defect microcavity fabricated using laser patterning

Abstract: This study uses a laser patterning setup to write defect structures into a conjugated polymer microcavity. We show that the defect enhances optical confinement and reduces the lasing threshold.

Cited by 2 publications

References 58 publications

Embrace the darkness: An experimental perspective on organic exciton–polaritons

Embrace the darkness: An experimental perspective on organic exciton–polaritons

Selective Gain in a Periodic Array of Nano-organic Light-Emitting Diodes

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