All Outputs (36)

An experimental demonstration of neuromorphic sensing of chemical species using electro-optical reservoir computing (2024)
Journal Article
Anufriev, G., Furniss, D., Farries, M. C., Seddon, A. B., & Phang, S. (in press). An experimental demonstration of neuromorphic sensing of chemical species using electro-optical reservoir computing. Scientific Reports, 14(1), Article 27915. https://doi.org/10.1038/s41598-024-79395-y

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 computin... Read More about An experimental demonstration of neuromorphic sensing of chemical species using electro-optical reservoir computing.

Short review and prospective: chalcogenide glass mid-infrared fibre lasers (2024)
Journal Article
Seddon, A. B., Farries, M., Nunes, J. J., Xiao, B., Furniss, D., Barney, E., Phang, S., Chahal, S., Kalfagiannis, N., Sojka, Ł., & Sujecki, S. (2024). Short review and prospective: chalcogenide glass mid-infrared fibre lasers. European Physical Journal Plus, 139(2), Article 142. https://doi.org/10.1140/epjp/s13360-023-04841-1

Rare-earth ion doped, silica glass, optical fibre amplifiers have transformed the world by enabling high speed communications and the Internet. Fibre lasers, based on rare-earth ion doped silica glass optical fibres, achieve high optical powers and a... Read More about Short review and prospective: chalcogenide glass mid-infrared fibre lasers.

Simulation of a Sensitive Mid-infrared (MIR) D-Shaped Optical Fiber Water Pollutant Sensor (2023)
Journal Article
Younis, B. M., Dawood, N. Y. M., Abd-Elkader, A. E.-S., Furniss, D., Farries, M., Phang, S., Benson, T. M., Seddon, A. B., Hameed, M. F. O., & Obayya, S. S. A. (2024). Simulation of a Sensitive Mid-infrared (MIR) D-Shaped Optical Fiber Water Pollutant Sensor. Plasmonics, 19(4), 1823-1838. https://doi.org/10.1007/s11468-023-02110-6

In this work, an efficient optical sensor is proposed for the sensitive detection of various pollutants in water. The suggested optical sensor is based on an indium fluoride (InF3) glass fabricated as a D-shaped optical fiber. The polished surface of... Read More about Simulation of a Sensitive Mid-infrared (MIR) D-Shaped Optical Fiber Water Pollutant Sensor.

Mid-infrared water pollutant sensor based on SPR-PCF (2023)
Journal Article
Gamal, Y., Younis, B. M., Abd-Elkader, A. E., Furniss, D., Farries, M., Phang, S., …Obayya, S. S. A. (2023). Mid-infrared water pollutant sensor based on SPR-PCF. Optical and Quantum Electronics, 55(11), Article 966. https://doi.org/10.1007/s11082-023-05207-8

In this paper, a highly sensitive water pollutant optical sensor is proposed and analyzed. The suggested sensor consists of photonic crystal fiber with a core surrounded by four elliptical holes infiltrated with the studied analyte (pure/polluted wat... Read More about Mid-infrared water pollutant sensor based on SPR-PCF.

(INVITED) Mid-infrared photoluminescence in Ce 3+ doped selenide-chalcogenide glass and fiber (2023)
Journal Article
Nunes, J. J., Crane, R. W., Tang, Z., Sójka, Ł., Kalfagiannis, N., Furniss, D., …Seddon, A. B. (2023). (INVITED) Mid-infrared photoluminescence in Ce 3+ doped selenide-chalcogenide glass and fiber. Optical Materials, 137, Article 113543. https://doi.org/10.1016/j.optmat.2023.113543

We provide measurements to support our earlier report of continuous wave fiber lasing in a small core Ce 3+-doped selenide chalcogenide SIF (step index fiber) of core: Ge-As-Ga-Se chalcogenide glass, doped with 500 ppmw (parts-per-million by weight)... Read More about (INVITED) Mid-infrared photoluminescence in Ce 3+ doped selenide-chalcogenide glass and fiber.

Vibrational Biospectroscopy: An Alternative Approach to Endometrial Cancer Diagnosis and Screening (2022)
Journal Article
Schiemer, R., Furniss, D., Phang, S., Seddon, A. B., Atiomo, W., & Gajjar, K. B. (2022). Vibrational Biospectroscopy: An Alternative Approach to Endometrial Cancer Diagnosis and Screening. International Journal of Molecular Sciences, 23(9), Article 4859. https://doi.org/10.3390/ijms23094859

Endometrial cancer (EC) is the sixth most common cancer and the fourth leading cause of death among women worldwide. Early detection and treatment are associated with a favourable prognosis and reduction in mortality. Unlike other common cancers, how... Read More about Vibrational Biospectroscopy: An Alternative Approach to Endometrial Cancer Diagnosis and Screening.

Mid-infrared spectral classification of endometrial cancer compared to benign controls in serum or plasma samples (2021)
Journal Article
Mabwa, D., Gajjar, K., Furniss, D., Schiemer, R., Crane, R., Fallaize, C., …Phang, S. (2021). Mid-infrared spectral classification of endometrial cancer compared to benign controls in serum or plasma samples. Analyst, 146(18), 5631-5642. https://doi.org/10.1039/D1AN00833A

This study demonstrates a discrimination of endometrial cancer versus (non-cancerous) benign controls based on mid-infrared (MIR) spectroscopy of dried plasma or serum liquid samples. A detailed evaluation was performed of four discriminant methods (... Read More about Mid-infrared spectral classification of endometrial cancer compared to benign controls in serum or plasma samples.

Room temperature mid-infrared fiber lasing beyond 5  µm in chalcogenide glass small-core step index fiber (2021)
Journal Article
Nunes, J. J., Sojka, Ł., Crane, R. W., Furniss, D., Tang, Z. Q., Mabwa, D., …Sujecki, S. (2021). Room temperature mid-infrared fiber lasing beyond 5  µm in chalcogenide glass small-core step index fiber. Optics Letters, 46(15), 3504-3507. https://doi.org/10.1364/ol.430891

We report mid-infrared fiber lasing for the first time above 5 µm in a room temperature, Ce 3+ doped, chalcogenide glass, step index fiber using in-band pumping with a 4.15 µm quantum cascade laser. The lasing fiber is 64 mm long, with a calculated n... Read More about Room temperature mid-infrared fiber lasing beyond 5  µm in chalcogenide glass small-core step index fiber.

Internal examination of mid-infrared chalcogenide glass optical fiber preforms and fiber using near-infrared imaging (2021)
Journal Article
Nunes, J. J., Crane, R. W., Mabwa, D., Furniss, D., Farries, M., Benson, T. M., & Seddon, A. B. (2021). Internal examination of mid-infrared chalcogenide glass optical fiber preforms and fiber using near-infrared imaging. Optical Materials Express, 11(5), 1353-1363. https://doi.org/10.1364/OME.415518

We report on the internal examination of mid-infrared chalcogenide glasses using near-infrared light to reveal light-scattering defects. The technique is demonstrated on imperfectly made chalcogenide glass rods and fiber. This simple, non-destructive... Read More about Internal examination of mid-infrared chalcogenide glass optical fiber preforms and fiber using near-infrared imaging.

Thermo-mechanical Dynamics of Nanoimprinting Anti-Reflective Structures onto Small-core Mid- IR Chalcogenide Fibers (2021)
Journal Article
Petersen, C. R., Lotz, M. B., Markos, C., Woyessa, G., Furniss, D., Seddon, A. B., …Bang, O. (2021). Thermo-mechanical Dynamics of Nanoimprinting Anti-Reflective Structures onto Small-core Mid- IR Chalcogenide Fibers. Chinese Optics Letters, 19(3), Article 030603

Thermal nanoimprinting is a fast and versatile method for transferring the anti-reflective properties of subwavelength nanostructures onto the surface of highly reflective substrates, such as chalcogenide glass optical fiber end-facets. In this paper... Read More about Thermo-mechanical Dynamics of Nanoimprinting Anti-Reflective Structures onto Small-core Mid- IR Chalcogenide Fibers.

Evaluating the cytotoxicity of Ge–Sb–Se chalcogenide glass optical fibres on 3T3 mouse fibroblasts (2021)
Journal Article
Mabwa, D., Kubiena, T., Parnell, H., Su, R., Furniss, D., Tang, Z., …Seddon, A. B. (2021). Evaluating the cytotoxicity of Ge–Sb–Se chalcogenide glass optical fibres on 3T3 mouse fibroblasts. RSC Advances, 11(15), 8682-8693. https://doi.org/10.1039/d0ra00353k

In vivo cancer detection based on the mid-infrared molecular fingerprint of tissue is promising for the fast diagnosis and treatment of suspected cancer patients. Few materials are mid-infrared transmissive, even fewer, which can be converted into fu... Read More about Evaluating the cytotoxicity of Ge–Sb–Se chalcogenide glass optical fibres on 3T3 mouse fibroblasts.

(INVITED) Methods for determining the refractive indices and thermo-optic coefficients of chalcogenide glasses at MIR wavelengths (2019)
Journal Article
Fang, Y., Furniss, D., Jayasuriya, D., Parnell, H., Tang, Z., Gibson, D., …Benson, T. (2019). (INVITED) Methods for determining the refractive indices and thermo-optic coefficients of chalcogenide glasses at MIR wavelengths. Optical Materials: X, 2, Article 100030. https://doi.org/10.1016/j.omx.2019.100030

Chalcogenide glasses have attracted much attention for the realization of photonic components owing to their outstanding optical properties in the mid-infrared (MIR) region. However, relatively few refractive index dispersion data are presently avail... Read More about (INVITED) Methods for determining the refractive indices and thermo-optic coefficients of chalcogenide glasses at MIR wavelengths.

Prospective on using mid-infrared supercontinuum laser sources for in vivo spectral discrimination of disease (2018)
Journal Article
Seddon, A. B., Napier, B., Lindsay, I., Lamrini, S., Moselund, P. M., Stone, N., …Farries, M. (2018). Prospective on using mid-infrared supercontinuum laser sources for in vivo spectral discrimination of disease. Analyst, 143(24), 5874-5887. https://doi.org/10.1039/c8an01396a

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 13.4 μm wavelength to... Read More about Prospective on using mid-infrared supercontinuum laser sources for in vivo spectral discrimination of disease.

Experimental investigation of mid-infrared laser action from DY3+ doped fluorozirconate fiber (2018)
Journal Article
Sójka, L., Pajewski, L., Popenda, M., Beres-Pawlik, E., Lamrini, S., Markowski, K., Osuch, T., Benson, T. M., Seddon, A. B., & Sujecki, S. (2018). Experimental investigation of mid-infrared laser action from DY3+ doped fluorozirconate fiber. IEEE Photonics Technology Letters, 30(12), 1083-1086. https://doi.org/10.1109/LPT.2018.2832009

Efficient continuous-wave laser operation at 2.982 μm is achieved with a Dy3:fluoride fiber pumped using an inhouse-built 1.1 μm ytterbium (III) fiber laser. The laser output power reached is 554 mW, with a maximum slope efficiency of 18% with respec... Read More about Experimental investigation of mid-infrared laser action from DY3+ doped fluorozirconate fiber.

Numerical analysis of spontaneous mid-infrared light emission from terbium ion doped multimode chalcogenide fibers (2018)
Journal Article
Sujecki, S., Sojka, L., Pawlik, E., Anders, K., Piramidowicz, R., Tang, Z., Furniss, D., Barney, E., Benson, T., & Seddon, A. (2018). Numerical analysis of spontaneous mid-infrared light emission from terbium ion doped multimode chalcogenide fibers. Journal of Luminescence, 199, https://doi.org/10.1016/j.jlumin.2018.03.031

In this contribution we use a numerical model to study the photoluminescence emitted by Tb3+ doped chalcogenide-selenide glass fibers pumped by laser light at approximately 3 µm. The model consists of the set of ordinary differential equations (ODEs)... Read More about Numerical analysis of spontaneous mid-infrared light emission from terbium ion doped multimode chalcogenide fibers.

Numerical and experimental investigation of mid-infrared laser action in resonantly pumped Pr3+ doped chalcogenide fibre (2016)
Journal Article
Sójka, L., Tang, Z., Furniss, D., Sakr, H., Bereś-Pawlik, E., Seddon, A., Benson, T., & Sujecki, S. (2017). Numerical and experimental investigation of mid-infrared laser action in resonantly pumped Pr3+ doped chalcogenide fibre. Optical and Quantum Electronics, 49(1), Article 21. https://doi.org/10.1007/s11082-016-0827-0

True mid-infrared Pr3+ absorption cross-section in a selenide-chalcogenide host-glass (2016)
Presentation / Conference Contribution
Seddon, A. B., Furniss, D., Tang, Z., Sójka, L., Benson, T. M., Caspary, R., & Sujecki, S. (2016). True mid-infrared Pr3+ absorption cross-section in a selenide-chalcogenide host-glass. . https://doi.org/10.1109/ICTON.2016.7550709

The mid-infrared (MIR) spans the 3-25 m wavelength range. Rare-earth-ion doped selenide-chalcogenide glasses are being developed for direct-emission MIR fibre lasers. The true Pr3+ absorption cross-section in the 3.5-6 µm wavelength region of a Pr3+... Read More about True mid-infrared Pr3+ absorption cross-section in a selenide-chalcogenide host-glass.

Numerical investigation of mid-infrared laser action in Pr3+ doped chalcogenide fibre laser (2016)
Presentation / Conference Contribution
Sójka, L., Tang, Z., Furniss, D., Sakr, H., Bereś-Pawlik, E., Seddon, A. B., …Sujecki, S. (2016). Numerical investigation of mid-infrared laser action in Pr3+ doped chalcogenide fibre laser.

Dy3+-doped selenide chalcogenide glasses: influence of Dy3+ dopant-aditive and containment (2016)
Journal Article
Furniss, D., Tang, Z., Barney, E., Neate, N. C., Benson, T., & Seddon, A. (2016). Dy3+-doped selenide chalcogenide glasses: influence of Dy3+ dopant-aditive and containment. Journal of the American Ceramic Society, 99(7), 2283-2291. https://doi.org/10.1111/jace.14218

This work reports on process‐induced impurities in rare‐earth ion: Dy3+‐doped selenide chalcogenide glasses, which are significant materials for active photonic devices in the mid‐infrared region. In particular, the effect of contamination from t... Read More about Dy3+-doped selenide chalcogenide glasses: influence of Dy3+ dopant-aditive and containment.

Low loss Ge-As-Se chalcogenide glass fiber, fabricated using extruded preform, for midinfrared photonics (2015)
Journal Article
Tang, Z., Shiryaev, V. S., Furniss, D., Sojka, L., Sujecki, S., Benson, T., Seddon, A. B., & Churbanov, M. F. (2015). Low loss Ge-As-Se chalcogenide glass fiber, fabricated using extruded preform, for midinfrared photonics. Optical Materials Express, 5(8), 1722-1737. https://doi.org/10.1364/OME.5.001722

Chalcogenide glass fibers have attractive properties (e.g. wide transparent window, high optical non-linearity) and numerous potential applications in the mid-infrared (MIR) region. Low optical loss is desired and important in the development of thes... Read More about Low loss Ge-As-Se chalcogenide glass fiber, fabricated using extruded preform, for midinfrared photonics.