Mid-Infrared Supercontinuum Generation Spanning More Than 11 μm in a Chalcogenide Step-Index Fiber

Petersen, Christian; Meller, Uffe; Kubat, Irnis; Zhou, Binbin; Dupont, Sune; Ramsay, Jacob; Benson, T.M.; Sujecki, S.; Abdel-Moneim, Nabil; Tang, Zhuoqi; Furniss, David; Seddon, Angela B.; Bang, Ole

doi:10.1364/cleo_si.2015.sf2d.7

Cited by 18 publications

(20 citation statements)

References 5 publications

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“…Many important molecules show their strong characteristic vibrational transitions in the mid-infrared (MIR) spectral region of 2-20 μm [1], which is crucial for applications in spectroscopy [2][3][4], molecular sensing [5,6], security [7], imaging [8], etc. However, the development of high-power and efficient MIR sources remains a challenge.…”

Section: Introductionmentioning

confidence: 99%

Metamaterial-based graphene thermal emitter

et al. 2017

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A thermal emitter composed of a frequency-selective surface metamaterial layer and a hexagonal boron nitride-encapsulated graphene filament is demonstrated. The broadband thermal emission of the metamaterial (consisting of ring resonators) was tailored into two discrete bands, and the measured reflection and emission spectra agreed well with the simulation results. The high modulation frequencies that can be obtained in these devices, coupled with their operation in air, confirm their feasibility for use in applications such as gas sensing.

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Section: Introductionmentioning

confidence: 99%

Metamaterial-based graphene thermal emitter

et al. 2017

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“…Chalcogenide glasses—amorphous chemical compounds that contain one or more chalcogens (Sulfur, Selenium, or Tellurium)—are attractive materials for optical applications . They have a high refractive index and high transmittance in the visible to mid‐infrared region—both can be easily tailored by glass composition .…”

Section: Calculated and Measured Angles For Reflection Diffraction Grmentioning

confidence: 99%

Direct Imprint of Optical Functionalities on Free‐Form Chalcogenide Glasses

Ostrovsky

Yehuda

Tzadka

et al. 2019

Advanced Optical Materials

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Scalable surface patterning of chalcogenide glasses is the crux for many optical applications of these promising optical materials. Here, a novel, resist‐free surface patterning of chalcogenide glasses with 3D relief microstructures is introduced, using direct radiation‐assisted thermal imprint. The imprint is based on a nanocomposite mold made of a carbon nanotube matrix and polydimethylsiloxane resin. To allow nanoimprint, the mold and glass substrate are confined between two elastic membranes, pneumatically pressed against each other, and controllably radiated by an infrared bulb. Since chalcogenide glass is transparent to infrared radiation, the radiation is mostly absorbed in the mold due to the embedded carbon nanotubes, so that the glass–mold interface is heated to the imprint temperature. By using this approach, the first of its type direct imprint of chalcogenide glass of any arbitrary form is demonstrated, including flat substrates and convex aspheric lenses. The composition and structure of imprinted chalcogenide glass are analyzed, and it is demonstrated that they are well maintained throughout the imprint. It is optically characterized both in transmission and reflection modes. It is believed that the innovation provides a quantum leap in the micro‐ and nano‐scale processing of chalcogenide glasses, and opens the pathway to their numerous applications.

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“…Currently, there is a significant research effort focused on extending the wavelength coverage toward the mid‐Infrared (mid‐IR) in the 2–20 µm molecular fingerprint region. [ 3–18 ] Various soft glasses based on chalcogenide (As 2 S 3 , As 2 Se 3 , GeAsSe), [ 3,8 ] tellurite (TeO 2 ), [ 19 ] telluride (GeTe, GeAsTeSe), [ 20,21 ] heavy‐metal oxide (PbO‐Bi 2 O 3 ‐Ga 2 O 3 ‐SiO 2 ‐CdO), [ 10 ] and ZBLAN (ZrF 4 –BaF 2 –LaF 3 –AlF 3 –NaF), [ 22–25 ] have been used for drawing highly nonlinear infrared fibers, and experiments have shown efficient mid‐IR SC generation up to 14 µm in chalcogenide optical fibers [ 3 ] and up to 16 µm in telluride fibers. [ 21 ] However, most of these mid‐IR SC sources have been demonstrated using bulky mid‐IR pump sources such as optical parametric oscillators (OPO) and amplifiers (OPA).…”

Section: Introductionmentioning

confidence: 99%

2–10 µm Mid‐Infrared Fiber‐Based Supercontinuum Laser Source: Experiment and Simulation

Venck¹,

St-Hilaire

Brilland³

et al. 2020

Laser & Photonics Reviews

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Mid‐infrared supercontinuum (mid‐IR SC) sources in the 2–20 µm molecular fingerprint region are in high demand for a wide range of applications including optical coherence tomography, remote sensing, molecular spectroscopy, and hyperspectral imaging. Herein, mid‐IR SC generation is investigated in a cascaded silica‐ZBLAN‐chalcogenide fiber system directly pumped with a commercially available pulsed fiber laser operating in the telecommunications window at 1.55 µm. This fiber‐based system is shown to generate a flat broadband mid‐IR SC covering the entire range from 2 to 10 µm with several tens of mW of output power. This technique paves the way for low cost, practical, and robust broadband SC sources in the mid‐IR without the requirement of mid‐infrared pump sources or Thulium‐doped fiber amplifiers. A fully realistic numerical model used to simulate the nonlinear pulse propagation through the cascaded fiber system is also described and the numerical results are used to discuss the physical processes underlying the spectral broadening in the cascaded system. Finally, recommendations are provided for optimizing the current cascaded system based on the simulation results.

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Mid-Infrared Supercontinuum Generation Spanning More Than 11 μm in a Chalcogenide Step-Index Fiber

Abstract: Sup 13.3μm is exp 100fs pulses a

Cited by 18 publications

References 5 publications

Metamaterial-based graphene thermal emitter

Metamaterial-based graphene thermal emitter

Direct Imprint of Optical Functionalities on Free‐Form Chalcogenide Glasses

2–10 µm Mid‐Infrared Fiber‐Based Supercontinuum Laser Source: Experiment and Simulation

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