Distributed-feedback quantum cascade laser emitting at 32 μm

Wolf, Johanna; Bismuto, A.; Beck, Mattias; Faist, Jérôme

doi:10.1364/oe.22.002111

Cited by 11 publications

(9 citation statements)

References 14 publications

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“…Overall, QCLs have been greatly improved, but many challenges remain, such as intervalley scattering, heat removal from the core region, and interface scattering, which limit the performance of QCLs, especially at short wavelengths [57]. Although InP-based QCLs emitting at wavelengths of 3-4 µm have been demonstrated recently [58,59], they are still not commercially available.…”

Section: Quantum Cascade Lasersmentioning

confidence: 99%

Mid-Infrared Tunable Laser-Based Broadband Fingerprint Absorption Spectroscopy for Trace Gas Sensing: A Review

Zhang

et al. 2019

Applied Sciences

126

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The vast majority of gaseous chemical substances exhibit fundamental rovibrational absorption bands in the mid-infrared spectral region (2.5–25 μm), and the absorption of light by these fundamental bands provides a nearly universal means for their detection. A main feature of optical techniques is the non-intrusive in situ detection of trace gases. We reviewed primarily mid-infrared tunable laser-based broadband absorption spectroscopy for trace gas detection, focusing on 2008–2018. The scope of this paper is to discuss recent developments of system configuration, tunable lasers, detectors, broadband spectroscopic techniques, and their applications for sensitive, selective, and quantitative trace gas detection.

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Section: Quantum Cascade Lasersmentioning

confidence: 99%

Mid-Infrared Tunable Laser-Based Broadband Fingerprint Absorption Spectroscopy for Trace Gas Sensing: A Review

Zhang

et al. 2019

Applied Sciences

126

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“…However, the development of QCLs on InP in this region is challenging, because the band offset between well and barrier required to achieve radiative intersubband transitions at a high enough energy can only be achieved in antimonide-based material systems or in the strained InGaAs/AlInAs material system [38][39][40][41]. We have previously published results of lasing action in the 3 µ m range [42]. In that work the device performances were impaired due to an unbalanced active region with an average 1.2% excess of indium and poor regrowth quality, resulting in leakage, high-threshold current densities, and mediocre power per QC period.…”

Section: Optimized Dfb-qcl Performancementioning

confidence: 99%

Advanced Fabrication of Single-Mode and Multi-Wavelength MIR-QCLs

et al. 2016

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Abstract:In this article we present our latest work on the optimization of mid-infrared quantum cascade laser fabrication techniques. Our efforts are focused on low dissipation devices, broad-area high-power photonic crystal lasers, as well as multi-wavelength devices realized either as arrays or multi-section distributed feedback (DFB) devices. We summarize our latest achievements and update them with our most recent results.

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“…У сучасних квантових каскадних лазерах (ККЛ) [1,2] і квантових каскадних детекторах (ККД) [3,4] активними робочими елементами є плоскі багатошарові напівпровідникові резо-нансно-тунельні структури (РТС). За умов збе-реження когерентності електронного потоку робочі характеристики згаданих наноприла-дів, в значній мірі, визначаються геометрични-ми та фізичними параметрами РТС.…”

Section: вступunclassified

Role of Two-Photon Electronic Transitions in Operation of Quantum Cascade Lasers

Tkach¹,

Сеті²,

Boiko³

et al. 2014

SEMST

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Анотація. У наближенні ефективних мас та прямокутних потенціальних ям і бар'єрів для електрона на основі аналітично знайдених розв'язків повного рівняння Шредінгера розвинена теорія динамічної провідності трибар'єрної резонансно-тунельної наноструктури у слабкому електромагнітному полі з урахуванням двофотонних електронних переходів з різними частотами. Показано, що вклад двофотонних електронних переходів з випромінюванням електромагнітних хвиль у загальну величину динамічної провідності в оптимальних конфігураціях трибар'єрної наноструктури може досягати 40%.Ключові слова: резонансно-тунельна структура, квантовий лазер, квантовий детектор, динамiчна провiднiсть. ROLE OF TWO-PHOTON ELECTRONIC TRANSITIONS IN OPERATION OF QUANTUM CASCADE LASERS M. V. Tkach, Ju. O. Seti, I. V. Boyko, M. V. Pan'kivAbstract. The theory of dynamic conductivity of three-barrier resonant tunneling structure in weak electromagnetic field taking into account two-photon electronic transitions with different frequencies is developed within the approximation of effective mass and rectangular potential wells and barriers for the electron using the analytically obtained solutions of complete Schrodinger equation. It is shown that

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Distributed-feedback quantum cascade laser emitting at 32 μm

Cited by 11 publications

References 14 publications

Mid-Infrared Tunable Laser-Based Broadband Fingerprint Absorption Spectroscopy for Trace Gas Sensing: A Review

Mid-Infrared Tunable Laser-Based Broadband Fingerprint Absorption Spectroscopy for Trace Gas Sensing: A Review

Advanced Fabrication of Single-Mode and Multi-Wavelength MIR-QCLs

Role of Two-Photon Electronic Transitions in Operation of Quantum Cascade Lasers

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