Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Dinuka Jayasuriya"'
Autor:
Lukasz Sojka, Zhuoqi Tang, Dinuka Jayasuriya, Meili Shen, Joel Nunes, David Furniss, Mark Farries, Trevor M. Benson, Angela B. Seddon, Slawomir Sujecki
Publikováno v:
Applied Sciences, Vol 10, Iss 2, p 539 (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. The source is a Pr3+-doped selenide chalcogenide, multimode, glass
Externí odkaz:
https://doaj.org/article/018827908a984bf99b061431ecfc0b68
Autor:
Zhuoqi Tang, Emma R. Barney, L. Sojka, Trevor M. Benson, David Furniss, Slawomir Sujecki, Angela B. Seddon, Dinuka Jayasuriya
Publikováno v:
Journal of Rare Earths
A numerical model was developed to study the time dynamics of photoluminescence emitted by Tb3+ doped multimode chalcogenide-selenide glass fibers pumped by laser light at approximately 2 μm. The model consists of a set of partial differential equat
Autor:
Mark Farries, David Mabwa, Angela B. Seddon, Zhuoqi Tang, Richard Crane, Joel Nunes, David Furniss, Boyu Xiao, Sendy Phang, Elzbieta Beres-Pawlik, Trevor M. Benson, Dinuka Jayasuriya, L. Sojka, Slawomir Sujecki
Publikováno v:
ICTON
Mid-infrared (MIR) spectroscopy and imaging underpin many applications, ranging from industrial process monitoring to environmental analysis, and offer a new era in healthcare and clinical diagnostics. The spectral region from 1.5 to $12\ \mu \mathrm
Autor:
Mark Farries, David Furniss, David Mabwa, Harriet Parnell, Sendy Phang, Y. Fang, Richard Crane, Angela B. Seddon, Emma R. Barney, Zhuoqi Tang, Trevor M. Benson, Slawomir Sujecki, Joel Nunes, Meili Shen, Elżbieta Bereś-Pawlik, L. Sojka, Dinuka Jayasuriya
Publikováno v:
Fiber Lasers and Glass Photonics: Materials through Applications II.
Many important molecules show strong characteristic vibrational transitions in the mid-infrared (MIR) part of the electromagnetic spectrum. This leads to applications in spectroscopy, chemical and bio-molecular sensing, security and industry, especia
Autor:
Dinuka Jayasuriya, Angela B. Seddon, David Furniss, Y. Fang, Zhuoqi Tang, Harriet Parnell, Trevor M. Benson
Publikováno v:
Optics express. 27(16)
A new method (FTIR continuous dn / dT method, n is refractive index and T temperature) for measuring the continuous thermo-optic coefficients of thin transparent films in the mid-infrared (MIR) spectral region is introduced. The technique is based on
Autor:
Slawomir Sujecki, Meili Shen, Zhuoqi Tang, Trevor M. Benson, L. Sojka, David Furniss, Mark Farries, Angela B. Seddon, Dinuka Jayasuriya
Publikováno v:
Scientific Reports, Vol 9, Iss 1, Pp 1-8 (2019)
We demonstrate a maximum gain of 4.6 dB at a signal wavelength of 5.28 μm in a 4.1 μm resonantly pumped Pr3+-doped selenide-based chalcogenide glass fibre amplifier of length 109 mm, as well as a new signal excited-stated absorption (ESA) at signal
Autor:
Angela B. Seddon, Emma R. Barney, L. Sojka, David Furniss, Zhuoqi Tang, Trevor M. Benson, Dinuka Jayasuriya, Slawomir Sujecki, Meili Shen
Publikováno v:
ICTON
In this contribution it is shown that broadband emission stretching from 2000 nm up to 6000 nm can be achieved when using selenide-chalcogenide glass. It is also shown experimentally that by appropriate selection of pumping wavelengths the shape of t
Autor:
Meili, Shen, David, Furniss, Mark, Farries, Dinuka, Jayasuriya, Zhuoqi, Tang, Lukasz, Sojka, Slawomir, Sujecki, Trevor M, Benson, Angela B, Seddon
Publikováno v:
Scientific Reports
We demonstrate a maximum gain of 4.6 dB at a signal wavelength of 5.28 μm in a 4.1 μm resonantly pumped Pr3+-doped selenide-based chalcogenide glass fibre amplifier of length 109 mm, as well as a new signal excited-stated absorption (ESA) at signal
Autor:
Christian Rosenberg Petersen, Trevor M. Benson, Angela B. Seddon, Dinuka Jayasuriya, David Furniss, Ole Bang, Md. Selim Habib, Christos Markos, Zhuoqi Tang
Publikováno v:
Jayasuriya, D, Petersen, C R, Furniss, D, Markos, C, Tang, Z, Habib, M S, Bang, O, Benson, T M & Seddon, A B 2019, ' Mid-IR supercontinuum generation in birefringent, low loss, ultra-high numerical aperture Ge-As-Se-Te chalcogenide step-index fiber ', Optical Materials Express, vol. 9, no. 6, pp. 2617-2629 . https://doi.org/10.1364/OME.9.002617
This work reports on the fabrication and subsequent supercontinuum generation in a Ge-As-Se-Te/Ge-As-Se core/clad chalcogenide step-index fiber with an elliptical-core and an ultra-high numerical aperture of 1.88 ± 0.02 from 2.5 - 15 µm wavelength.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23f10ba3ca7ae53753705bddee22c462
https://orbit.dtu.dk/en/publications/77822cac-1cea-4bdb-a2c8-fa706c581b06
https://orbit.dtu.dk/en/publications/77822cac-1cea-4bdb-a2c8-fa706c581b06
Autor:
Y. Fang, Dinuka Jayasuriya, Ł. Sojka, Angela B. Seddon, Zhuoqi Tang, Trevor M. Benson, Christos Markos, Slawomir Sujecki, David Furniss
Publikováno v:
Fang, Y Z, Jayasuriya, D, Furniss, D, Tang, Z Q, Sojka, M, Markos, C, Sujecki, S, Seddon, A B & Benson, T M 2017, ' Determining the refractive index dispersion and thickness of hot-pressed chalcogenide thin films from an improved Swanepoel method ', Optical and Quantum Electronics, vol. 49, no. 7, 237 . https://doi.org/10.1007/s11082-017-1057-9
The well-known method presented by Swanepoel can be used to determine the refractive index dispersion of thin films in the near-infrared region from wavelength values at maxima and minima, only, of the transmission interference fringes. In order to e