An experimental demonstration of neuromorphic sensing of chemical species using electro-optical reservoir computing.

A chemical discrimination system based on photonic reservoir computing is demonstrated experimentally for the first time. The system is inspired by the way humans perceive and process visual sensory information. The electro-optical reservoir computing system is a photonic analogue of the human nervous system with the read-out layer acting as the 'brain', and the sensor that of the human eye.

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

A diode-pumped Q-switched Er: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 obtained show that the Q-switched operation with 46 µJ pulse energy, 56 ns long pulses, and 0.

Experimental photoluminescence and lifetimes at wavelengths including beyond 7 microns in Sm-doped selenide-chalcogenide glass fibers.

1000 ppmw Sm-doped GeSbSeGa atomic % chalcogenide bulk glass and unstructured fiber are prepared. Near- and mid-infrared absorption spectra of the bulk glass reveal Sm electronic absorption bands, and extrinsic vibrational absorption bands, due to host impurities. Fiber photoluminescence, centred at 3.

Correction: Prospective on using fibre mid-infrared supercontinuum laser sources for in vivo spectral discrimination of disease.

Correction for 'Prospective on using fibre mid-infrared supercontinuum laser sources for in vivo spectral discrimination of disease' by Angela B. Seddon et al., Analyst, 2018, 143, 5874-5887.

Experimental observation of gain in a resonantly pumped Pr-doped chalcogenide glass mid-infrared fibre amplifier notwithstanding the signal excited-state absorption.

We demonstrate a maximum gain of 4.6 dB at a signal wavelength of 5.28 μm in a 4.

Prospective on using fibre mid-infrared supercontinuum laser sources for in vivo spectral discrimination of disease.

Mid-infrared (MIR) fibre-optics may play a future role in in vivo diagnosis of disease, including cancer. Recently, we reported for the first time an optical fibre based broadband supercontinuum (SC) laser source spanning 1.3 to 13.

Mid-infrared multispectral tissue imaging using a chalcogenide fiber supercontinuum source.

We present, to the best of our knowledge, the first demonstration of mid-infrared supercontinuum (SC) tissue imaging at wavelengths beyond 5 μm using a fiber-coupled SC source spanning 2-7.5 μm. The SC was generated in a tapered large-mode-area chalcogenide photonic crystal fiber in order to obtain broad bandwidth, high average power, and single-mode output for diffraction-limited imaging performance.

Mid-infrared supercontinuum generation to 12.5μm in large NA chalcogenide step-index fibres pumped at 4.5μm.

We present numerical modeling of mid-infrared (MIR) supercontinuum generation (SCG) in dispersion-optimized chalcogenide (CHALC) step-index fibres (SIFs) with exceptionally high numerical aperture (NA) around one, pumped with mode-locked praseodymium-doped (Pr(3+)) chalcogenide fibre lasers. The 4.5um laser is assumed to have a repetition rate of 4MHz with 50ps long pulses having a peak power of 4.