scholarly journals Room temperature mid-infrared fiber lasing beyond 5 µm in chalcogenide glass small-core fiber

2021 ◽  
Author(s):  
Joel Nunes ◽  
Lukasz Sojka ◽  
Richard Crane ◽  
David Furniss ◽  
David Mabwa ◽  
...  
Keyword(s):  
Chalcogenide Glass ◽  
Room Temperature ◽  
Mid Infrared ◽  
Small Core ◽  
Core Fiber

scholarly journals Mid-infrared photoluminescence in small-core fiber of praseodymium-ion doped selenide-based chalcogenide glass

2015 ◽  
Vol 5 (4) ◽  
pp. 870 ◽  
Author(s):  
Zhuoqi Tang ◽  
David Furniss ◽  
Michael Fay ◽  
Hesham Sakr ◽  
Lukasz Sójka ◽  
...  
Keyword(s):  
Chalcogenide Glass ◽  
Mid Infrared ◽  
Small Core ◽  
Core Fiber

scholarly journals Mid-infrared hollow core fiber drawn from a 3D printed chalcogenide glass preform

2020 ◽  
Vol 11 (1) ◽  
pp. 198
Author(s):  
Julie Carcreff ◽  
Francois Cheviré ◽  
Elodie Galdo ◽  
Ronan Lebullenger ◽  
Antoine Gautier ◽  
...  
Keyword(s):  
Chalcogenide Glass ◽  
Hollow Core ◽  
Mid Infrared ◽  
3D Printed ◽  
Core Fiber

scholarly journals Mid infrared polarization engineering via sub-wavelength biaxial hyperbolic van der Waals crystals

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Saurabh Dixit ◽  
Nihar Ranjan Sahoo ◽  
Abhishek Mall ◽  
Anshuman Kumar
Keyword(s):  
Room Temperature ◽  
Extinction Ratio ◽  
Polarization State ◽  
Van Der Waals ◽  
Photonic Devices ◽  
Mid Infrared ◽  
Precise Control ◽  
Electromagnetic Simulations ◽  
Frequency Regime ◽  
Sub Wavelength

AbstractMid-infrared (IR) spectral region is of immense importance for astronomy, medical diagnosis, security and imaging due to the existence of the vibrational modes of many important molecules in this spectral range. Therefore, there is a particular interest in miniaturization and integration of IR optical components. To this end, 2D van der Waals (vdW) crystals have shown great potential owing to their ease of integration with other optoelectronic platforms and room temperature operation. Recently, 2D vdW crystals of $$\alpha$$ α -$$\hbox {MoO}_{3}$$ MoO 3 and $$\alpha$$ α -$$\hbox {V}_2 \hbox {O}_5$$ V 2 O 5 have been shown to possess the unique phenomenon of natural in-plane biaxial hyperbolicity in the mid-infrared frequency regime at room temperature. Here, we report a unique application of this in-plane hyperbolicity for designing highly efficient, lithography free and extremely subwavelength mid-IR photonic devices for polarization engineering. In particular, we show the possibility of a significant reduction in the device footprint while maintaining an enormous extinction ratio from $$\alpha$$ α -$$\hbox {MoO}_{3}$$ MoO 3 and $$\alpha$$ α -$$\hbox {V}_2$$ V 2 $$\hbox {O}_5$$ O 5 based mid-IR polarizers. Furthermore, we investigate the application of sub-wavelength thin films of these vdW crystals towards engineering the polarization state of incident mid-IR light via precise control of polarization rotation, ellipticity and relative phase. We explain our results using natural in-plane hyperbolic anisotropy of $$\alpha$$ α -$$\hbox {MoO}_{3}$$ MoO 3 and $$\alpha$$ α -$$\hbox {V}_2$$ V 2 $$\hbox {O}_5$$ O 5 via both analytical and full-wave electromagnetic simulations. This work provides a lithography free alternative for miniaturized mid-infrared photonic devices using the hyperbolic anisotropy of $$\alpha$$ α -$$\hbox {MoO}_{3}$$ MoO 3 and $$\alpha$$ α -$$\hbox {V}_2$$ V 2 $$\hbox {O}_5$$ O 5 .

scholarly journals Mid-infrared photoacoustic gas monitoring driven by a gas-filled hollow-core fiber laser

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yazhou Wang ◽  
Yuyang Feng ◽  
Abubakar I. Adamu ◽  
Manoj K. Dasa ◽  
J. E. Antonio-Lopez ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Signal To Noise Ratio ◽  
High Sensitivity ◽  
Laser Source ◽  
High Signal ◽  
Mid Infrared ◽  
Raman Fiber Laser ◽  
Custom Made ◽  
Core Fiber ◽  
Detection Technologies

AbstractDevelopment of novel mid-infrared (MIR) lasers could ultimately boost emerging detection technologies towards innovative spectroscopic and imaging solutions. Photoacoustic (PA) modality has been heralded for years as one of the most powerful detection tools enabling high signal-to-noise ratio analysis. Here, we demonstrate a novel, compact and sensitive MIR-PA system for carbon dioxide (CO2) monitoring at its strongest absorption band by combining a gas-filled fiber laser and PA technology. Specifically, the PA signals were excited by a custom-made hydrogen (H2) based MIR Raman fiber laser source with a pulse energy of ⁓ 18 μJ, quantum efficiency of ⁓ 80% and peak power of ⁓ 3.9 kW. A CO2 detection limit of 605 ppbv was attained from the Allan deviation. This work constitutes an alternative method for advanced high-sensitivity gas detection.

Room temperature mid-infrared quantum cascade lasers

1996 ◽  
Vol 32 (6) ◽  
pp. 560 ◽  
Author(s):  
J. Faist ◽  
F. Capasso ◽  
C. Sirtori ◽  
D.L. Sivco ◽  
A.L. Hutchinson ◽  
...  
Keyword(s):  
Room Temperature ◽  
Quantum Cascade Lasers ◽  
Mid Infrared ◽  
Quantum Cascade ◽  
Cascade Lasers

High-power mid-infrared supercontinuum generation using germania-core fiber

2021 ◽  
Author(s):  
Xuan Wang ◽  
Chuanfei Yao ◽  
Pingxue Li ◽  
Guochuan Ren ◽  
Linjing Yang ◽  
...  
Keyword(s):  
High Power ◽  
Supercontinuum Generation ◽  
Mid Infrared ◽  
Core Fiber

Room temperature thermo-electric pumping in mid-infrared light-emitting diodes

2013 ◽  
Vol 103 (18) ◽  
pp. 183513 ◽  
Author(s):  
Parthiban Santhanam ◽  
Duanni Huang ◽  
Rajeev J. Ram ◽  
Maxim A. Remennyi ◽  
Boris A. Matveev
Keyword(s):  
Room Temperature ◽  
Light Emitting Diodes ◽  
Infrared Light ◽  
Thermo Electric ◽  
Mid Infrared ◽  
Light Emitting

scholarly journals Room-temperature mid-infrared photodetector in all-carbon graphene nanoribbon-C_60 hybrid nanostructure

Optica ◽  
2016 ◽  
Vol 3 (9) ◽  
pp. 979 ◽  
Author(s):  
Xuechao Yu ◽  
Zhaogang Dong ◽  
Joel K W Yang ◽  
Qi Jie Wang
Keyword(s):  
Room Temperature ◽  
Graphene Nanoribbon ◽  
Hybrid Nanostructure ◽  
Infrared Photodetector ◽  
Mid Infrared
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