4 Results Found

Advanced Search

Select all

Results per page

Select all

Article

10 Citations

5,219 Views

15 Pages

Widely-Tunable Quantum Cascade-Based Sources for the Development of Optical Gas Sensors

Virginie Zéninari,
Raphaël Vallon,
Laurent Bizet,
Clément Jacquemin and ,
Guillaume Aoust,
Grégory Maisons,
Mathieu Carras and
Bertrand Parvitte
+ 3 authors+ 0 author

Sensors2020, 20(22), 6650;https://doi.org/10.3390/s20226650

20 November 2020

Spectroscopic techniques based on Distributed FeedBack (DFB) Quantum Cascade Lasers (QCL) provide good results for gas detection in the mid-infrared region in terms of sensibility and selectivity. The main limitation is the QCL relatively low tuning...

(This article belongs to the Section Optical Sensors)

Full Article

Feature Paper
Article

15 Citations

7,181 Views

13 Pages

Multi-Spectral Quantum Cascade Lasers on Silicon With Integrated Multiplexers

Eric J. Stanton,
Alexander Spott,
Jon Peters,
Michael L. Davenport and ,
Aditya Malik,
Nicolas Volet,
Junqian Liu,
Charles D. Merritt,
Igor Vurgaftman and
John E. Bowers
+ 7 authors+ 2 authors

Photonics2019, 6(1), 6;https://doi.org/10.3390/photonics6010006

24 January 2019

Multi-spectral midwave-infrared (mid-IR) lasers are demonstrated by directly bonding quantum cascade epitaxial gain layers to silicon-on-insulator (SOI) waveguides with arrayed waveguide grating (AWG) multiplexers. Arrays of distributed feedback (DFB...

Full Article

Article

6 Citations

3,433 Views

17 Pages

ATEX-Certified, FPGA-Based Three-Channel Quantum Cascade Laser Sensor for Sulfur Species Detection in Petrochemical Process Streams

Harald Moser,
Johannes Paul Waclawek,
Walter Pölz and
Bernhard Lendl

Sensors2025, 25(3), 635;https://doi.org/10.3390/s25030635

22 January 2025

In this work, a highly sensitive, selective, and industrially compatible gas sensor prototype is presented. The sensor utilizes three distributed-feedback quantum cascade lasers (DFB-QCLs), employing wavelength modulation spectroscopy (WMS) for the d...

(This article belongs to the Special Issue Photonics for Advanced Spectroscopy and Sensing)

Full Article

Article

1 Citations

2,222 Views

6 Pages

A Study on the Photoelectric Properties of Dual Ridge Terahertz Quantum Cascade Lasers at 3.1 THz

Qi Yang,
Jicheng Zhang,
Xuemin Wang,
Zhiqiang Zhan and ,
Tao Jiang,
Jia Li,
Ruijiao Zou,
Keyu Li,
Fengwei Chen and
Weidong Wu
+ 5 authors+ 0 author

Nanomaterials2022, 12(15), 2529;https://doi.org/10.3390/nano12152529

23 July 2022

High-power, incoherent THz array sources are widely desired in some applications due to their low energy, unique terahertz fingerprint, and image. In this work, a dual ridge terahertz quantum cascade laser lasing at 3.1 THz is presented, and the devi...

Full Article