Results 1 to 10 of about 157,814 (199)

Swept-wavelength mid-infrared fiber laser for real-time ammonia gas sensing

APL Photonics, 2019
The mid-infrared (mid-IR) spectral region holds great promise for new laser-based sensing technologies, based on measuring strong mid-IR molecular absorption features.
R. I. Woodward, M. R. Majewski, D. D. Hudson, S. D. Jackson   +3 more
doaj   +2 more sources

Mid-infrared chirality and chiral thermal emission from twisted α-MoO3 [PDF]

Nature Communications
Chirality in the mid-infrared spectral range plays a crucial role across physical, chemical, and biological sciences, yet sources of chiral infrared light are currently difficult to obtain.
Michael T. Enders, Mitradeep Sarkar, Evgenia Klironomou, Michela Florinda Picardi, Riccardo Bertini, Aleksandra Deeva, Georgia T. Papadakis   +6 more
doaj   +2 more sources

2-10 μm Mid-infrared Supercontinuum Light Sources [PDF]

, 2016
Spectroscopy is the study of how light interacts with molecules, which can be used to identify various substances in for example foods and medicine, by observing which parts of the light is absorbed after interaction with the sample. Especially infrared light, more precisely the mid infrared part of the spectrum, is of interest because almost all ...
Petersen, Christian Rosenberg
core   +2 more sources

Mid-infrared InAs/InP quantum-dot lasers [PDF]

Light: Science & Applications
Mid-infrared semiconductor lasers operating in the 2.0–5.0 μm spectral range play an important role for various applications, including trace-gas detection, biomedical analysis, and free-space optical communication.
Yangqian Wang, Hui Jia, Jae-Seong Park, Haotian Zeng, Igor P. Marko, Matthew Bentley, Khalil El Hajraoui, Shangfeng Liu, Bo Yang, Calum Dear, Mengxun Bai, Huiwen Deng, Chong Chen, Jiajing Yuan, Jun Li, Kongming Liu, Dominic A. Duffy, Zhao Yan, Zihao Wang, Stephen J. Sweeney, Qiandong Zhuang, Quentin M. Ramasse, Siming Chen, Mingchu Tang, Qiang Li, Alwyn Seeds, Huiyun Liu   +26 more
doaj   +2 more sources

Tunable mW Narrow Bandwidth Mid-Infrared Light Source [PDF]

Lasers, Sources, and Related Photonic Devices, 2012
A Tunable Mid-IR light source base on single resonant Difference Frequency Generation (DFG) is experimentally investigated. The DFG process is pumped by an 800 nm tunable tapered diode laser. Grating feedback to the single mode channel of the tapered diode narrows the spectrum and allows for tuning of the diode laser wavelength by rotating the grating.
Krenzen, Erik, Kehlet, Louis M., Tidemand-Lichtenberg, Peter, Dam, Jeppe Seidelin, Jensen, Ole Bjarlin, Pedersen, Christian   +5 more
openaire   +3 more sources

Broadband and fast frequency chirped FTIR spectroscopy with strongly modulated quantum cascade lasers [PDF]

EPJ Web of Conferences, 2023
While the opportunity to perform fast and broadband spectroscopy in the Mid-IR portion of the electromagnetic spectrum is very appealing, it requires the use of compatible light-sources.
Cargioli Alessio, Piciocchi Diego, Bertrand Mathieu, Maulini Richard, Blaser Stéphane, Gresch Tobias, Muller Antoine, Faist Jérôme   +7 more
doaj   +1 more source

GaAs-chip-based mid-infrared supercontinuum generation

Light: Science & Applications, 2023
The mid-infrared spectral region opens up new possibilities for applications such as molecular spectroscopy with high spatial and frequency resolution. For example, the mid-infrared light provided by synchrotron sources has helped for early diagnosis of ...
Geoffroy Granger, Myriam Bailly, Hugo Delahaye, Cristian Jimenez, Idris Tiliouine, Yann Leventoux, Jean-Christophe Orlianges, Vincent Couderc, Bruno Gérard, Rezki Becheker, Said Idlahcen, Thomas Godin, Ammar Hideur, Arnaud Grisard, Eric Lallier, Sébastien Février   +15 more
doaj   +1 more source

Tunable single-mode chip-scale mid-infrared laser

Communications Physics, 2021
The availability of integrated mid-infrared light sources is restricted by a lack of suitable materials and increasingly complicated fabrication requirements.
Euijae Shim, Andres Gil-Molina, Ohad Westreich, Yamac Dikmelik, Kevin Lascola, Alexander L. Gaeta, Michal Lipson   +6 more
doaj   +1 more source

Experimental Investigation of Actively Q-Switched Er³⁺:ZBLAN Fiber Laser Operating at around 2.8 µm

Sensors, 2020
A diode-pumped Q-switched Er3+:ZBLAN double-clad, single-transverse mode fiber laser is practically realized. The Q-switched laser characteristics as a function of pump power, repetition rate, and fiber length are experimentally investigated. The results
Lukasz Sojka, Lukasz Pajewski, Samir Lamrini, Mark Farries, Trevor M. Benson, Angela B. Seddon, Slawomir Sujecki   +6 more
doaj   +1 more source

Milliwatt-Level Spontaneous Emission Across the 3.5–8 µm Spectral Region from Pr³⁺ Doped Selenide Chalcogenide Fiber Pumped with a Laser Diode

Applied Sciences, 2020
A spontaneous emission fiber source operating in the mid-infrared (MIR) wavelength range from 3.5 to 8 µm is demonstrated for the first time at output power levels of at least 1 mW.
Lukasz Sojka, Zhuoqi Tang, Dinuka Jayasuriya, Meili Shen, Joel Nunes, David Furniss, Mark Farries, Trevor M. Benson, Angela B. Seddon, Slawomir Sujecki   +9 more
doaj   +1 more source