Recent developments in handheld and portable optosensing—A review

LF Capitán-Vallvey, AJ Palma - Analytica chimica acta, 2011 - Elsevier
Recent developments in portable and handheld opto-chemical analytical instrumentation
over the last decade (2000–2010) are reviewed. First, the characteristics of typical …

Sensitivity advantage of QCL tunable-laser mid-infrared spectroscopy over FTIR spectroscopy

DTD Childs, RA Hogg, DG Revin… - Applied Spectroscopy …, 2015 - Taylor & Francis
Interest in mid-infrared spectroscopy instrumentation beyond classical FTIR using a thermal
light source has increased dramatically in recent years. Synchrotron, supercontinuum, and …

Near-infrared and mid-infrared semiconductor broadband light emitters

CC Hou, HM Chen, JC Zhang, N Zhuo… - Light: Science & …, 2018 - nature.com
Semiconductor broadband light emitters have emerged as ideal and vital light sources for a
range of biomedical sensing/imaging applications, especially for optical coherence …

Mid-infrared optical coherence tomography

CS Colley, JC Hebden, DT Delpy… - Review of Scientific …, 2007 - pubs.aip.org
A time domain optical coherence tomography (OCT) system is described that uses mid-
infrared light (6–8 μ m)⁠. To the best of our knowledge, this is the first OCT system that …

High power spiral cavity quantum cascade superluminescent emitter

MC Zheng, NL Aung, A Basak, PQ Liu, X Wang… - Optics …, 2015 - opg.optica.org
Quantum Cascade devices with an emission wavelength centered around 5 μm have been
shaped into compact, yet long (8 mm and 12 mm) spiral cavities to increase mid-infrared …

Broadband superluminescence, 5.9 μm to 7.2 μm, of a quantum cascade gain device

S Riedi, F Cappelli, S Blaser, PY Baroni, A Müller… - Optics …, 2015 - opg.optica.org
The broadband electroluminescence of a quantum cascade device based on a multi-color
active region covering the wavelengths 5.9 μm–7.2 μm was measured. Anti-reflection …

Widely tunable single-mode quantum cascade lasers with two monolithically coupled Fabry-Pérot cavities

S Höfling, J Heinrich, JP Reithmaier, A Forchel… - Applied physics …, 2006 - pubs.aip.org
The authors report on tunable, miniaturized, two-segment coupled cavity quantum cascade
lasers fabricated in a process with a single dry etch step. They observed controllable vernier …

A novel teaching-learning based optimization approach for design of broad-band anti-reflection coatings

SJ Patel, A Toshniwal, V Kheraj - Swarm and evolutionary computation, 2017 - Elsevier
The design of thin-film multilayered anti-reflection (AR) coating is quite an intricate task due
to highly nonlinear and complex dimensional search space, which includes many local …

Broadband 2.4 μm superluminescent GaInAsSb/AlGaAsSb quantum well diodes for optical sensing of biomolecules

MB Wootten, J Tan, YJ Chien… - Semiconductor …, 2014 - iopscience.iop.org
High power, high radiance, broadband light sources emitting in the 2.0–2.5 μm wavelength
range are important for optical sensing of biomolecules such as glucose in aqueous …

High peak power (≥ 10 mW) quantum cascade superluminescent emitter

NL Aung, Z Yu, Y Yu, PQ Liu, X Wang, JY Fan… - Applied Physics …, 2014 - pubs.aip.org
We report room temperature and milliwatt range mid-infrared superluminescent emission at
5 μm from Quantum Cascade (QC) devices. To achieve high power superluminescence, we …