High brightness diode-pumped organic solid-state laser

Zhao, Zhuang; Mhibik, Oussama; Nafa, Malik; Chénais, Sébastien; Forget, Sébastien

doi:10.1063/1.4907318

Cited by 26 publications

(19 citation statements)

References 21 publications

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“…This adversely leads to photodegradation of the laser dyes and also limits the choice of pump source for these OSSLs . An inert polymer matrix such as polystyrene (PS) or poly(methyl methacrylate) (PMMA) that enables dispersion of the dye at a low doping concentration is useful to overcome the issues of concentration quenching and photodegradation . However, this approach is not practical for charge injection and charge transport because PMMA is not a semiconductor, restricting its applications in optoelectronic devices.…”

Section: Introductionmentioning

confidence: 99%

Deep‐Red Lasing and Amplified Spontaneous Emission from Nature Inspired Bay‐Annulated Indigo Derivatives

Shukla

Wallwork

et al. 2019

Advanced Optical Materials

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While noteworthy progress has been made on organic solid‐state lasers with low amplified spontaneous emission (ASE) thresholds and high optical gains in blue and green colors, the same advancement has not been achieved for red laser dyes. This is mainly due to their low photoluminescence quantum yields (PLQYs) because of “energy bandgap law.” Here, a new family of solution‐processable organic semiconductor laser dyes based on a bay‐annulated indigo derivative (Cibalackrot) with deep‐red emission is reported. They exhibit excellent PLQYs and low ASE thresholds (9.6 µJ cm−2) with deep‐red emission when blended in a mixed host of 1,3‐bis(N‐carbazolyl)benzene (mCP) and 2‐hydroxyphenylbenzothiazole (HBT). In contrast to a single blend in mCP, the co‐blend films are found to significantly enhance the photostability by retaining 90% of initial ASE intensity even after continuous pumping with over 9000 pulses at a pump input energy twice that of the ASE threshold, which can be attributed to efficient cascade energy transfer from mCP to HBT and then to the Cibalackrot chromophore. Low lasing threshold of 6 µJ cm−2 is further achieved at 641 nm by using distributed feedback gratings. Transient absorption spectroscopy measurements indicate that the dye has extremely low yield of triplet excited‐state under optical excitation. The results show Cibalackrot derivatives to be a promising new family of organic deep‐red laser dyes.

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Section: Introductionmentioning

confidence: 99%

Deep‐Red Lasing and Amplified Spontaneous Emission from Nature Inspired Bay‐Annulated Indigo Derivatives

Shukla

Wallwork

et al. 2019

Advanced Optical Materials

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“…Early OSSLs were realized by bulk optics 24 , but soon alternative designs have been developed. For example, vertical emission has been realized with vertical cavity surface-emitting lasers (VCSELs) 25–27 , vertical external cavity surface-emitting organic laser (VECSOL) 28 , and Bragg gratings 17,22,29–31 . However, the in-plane emission of the laser radiation into planar waveguides is a prerequisite for the application as an integrated light source in PIC devices.…”

Section: Introductionmentioning

confidence: 99%

Slot-Waveguide Silicon Nitride Organic Hybrid Distributed Feedback Laser

Vogelbacher

Sagmeister

Kraft

et al. 2019

Sci Rep

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One of the major barriers for a widespread commercial uptake of silicon nitride photonic integrated circuits for cost-sensitive applications is the lack of low-cost monolithically integrated laser light sources directly emitting into single-mode waveguides. In this work, we demonstrate an optically pumped organic solid-state slot-waveguide distributed feedback laser designed for a silicon nitride organic hybrid photonic platform. Pulsed optical excitation of the gain medium is achieved by a 450 nm laser diode. The optical feedback for lasing is based on a second-order laterally coupled Bragg grating with a slot-waveguide core. Optimized material gain properties of the organic dye together with the increased modal gain of the laser mode arising from the improved overlap of the slot-waveguide geometry with the gain material enable single-mode lasing at a wavelength of 600 nm. The straightforward integration and operation with a blue laser diode leads to a cost-effective coherent light source for photonic integrated devices.

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“…The slope efficiency is commonly determined by the slope between the pump (input) energy and output energy. A high brightness OSSL with a slope efficiency of 11% was achieved using a 4-(dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran (DCM)-based Vertical External-Cavity Surface-emitting Organic Laser (VECSOL) 14 . More recently, studies have shown that the organic thin film laser of the VECSOL can operate in single longitudinal mode (SLM) with the combination of a volume Bragg grating (VBG) 15 .…”

mentioning

confidence: 99%

Re-evaluation of all-plastic organic dye laser with DFB structure fabricated using photoresists

Tsutsumi

Nagi

Kinashi

et al. 2016

Sci Rep

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Organic solid-state lasers (OSSLs) with distributed feedback structures can detect nanoscale materials and therefore offer an attractive sensing platform for biological and medical applications. Here we investigate the lasing characteristics, i.e., the threshold and slope efficiency, as a function of the grating depth in OSSL devices with distributed feedback (DFB) structure fabricated using photoresists. Two types of photoresists were used for the DFB structures: a negative photoresist, SU-8 2002, and a positive photoresist, ma-P 1275. The DFB structure was fabricated using a Lloyd-mirror configuration. The active layer was a rhodamine 6G-doped cellulose acetate waveguide. The threshold for the first order mode (m = 1) was lower than that for the second and third order modes (m = 2, and 3). A low threshold of 27 μJ cm−2 pulse−1 (58 nJ) was obtained using SU-8 2002, with m = 1. The slope efficiency was evaluated as a function of grating depth for each mode and increased as the grating depth increased.

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High brightness diode-pumped organic solid-state laser

Cited by 26 publications

References 21 publications

Deep‐Red Lasing and Amplified Spontaneous Emission from Nature Inspired Bay‐Annulated Indigo Derivatives

Deep‐Red Lasing and Amplified Spontaneous Emission from Nature Inspired Bay‐Annulated Indigo Derivatives

Slot-Waveguide Silicon Nitride Organic Hybrid Distributed Feedback Laser

Re-evaluation of all-plastic organic dye laser with DFB structure fabricated using photoresists

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