Search Results - "Gibson, Ursula J."

Semiconductor core fibres: materials science in a bottle by Gibson, Ursula J., Wei, Lei, Ballato, John

“…Novel core fibers have a wide range of applications in optics, as sources, detectors and nonlinear response media. Optoelectronic, and even electronic device…”
Get full text

Laser recrystallization and inscription of compositional microstructures in crystalline SiGe-core fibres by Coucheron, David A., Fokine, Michael, Patil, Nilesh, Breiby, Dag Werner, Buset, Ole Tore, Healy, Noel, Peacock, Anna C., Hawkins, Thomas, Jones, Max, Ballato, John, Gibson, Ursula J.

“…Glass fibres with silicon cores have emerged as a versatile platform for all-optical processing, sensing and microscale optoelectronic devices. Using SiGe in…”
Get full text

Localised structuring of metal-semiconductor cores in silica clad fibres using laser-driven thermal gradients by Song, Seunghan, Laurell, Fredrik, Meehan, Bailey, Hawkins, Thomas W., Ballato, John, Gibson, Ursula J.

“…The molten core drawing method allows scalable fabrication of novel core fibres with kilometre lengths. With metal and semiconducting components combined in a…”
Get full text

All-fibre heterogeneously-integrated frequency comb generation using silicon core fibre by Sohanpal, Ronit, Ren, Haonan, Shen, Li, Deakin, Callum, Heidt, Alexander M., Hawkins, Thomas W., Ballato, John, Gibson, Ursula J., Peacock, Anna C., Liu, Zhixin

“…Originally developed for metrology, optical frequency combs are becoming increasingly pervasive in a wider range of research topics including optical…”
Get full text

Laser structuring, stress modification and Bragg grating inscription in silicon-core glass fibers by Fokine, Michael, Theodosiou, Antreas, Song, Seunghan, Hawkins, Thomas, Ballato, John, Kalli, Kyriacos, Gibson, Ursula J.

“…Semiconductor core fibers have numerous potential applications in optoelectronics and photonics, and the key to realizing these opportunities is controlled…”
Get full text

Enhanced Nucleation, Growth Rate, and Dopant Incorporation in ZnO Nanowires by Cui, Jingbiao, Gibson, Ursula J

“…Pure and Co-doped ZnO nanowire arrays were grown on polished silicon substrates with high rates via an electrochemical technique. A negative potential applied…”
Get full text

A Simple Two-Step Electrodeposition of Cu2O/ZnO Nanopillar Solar Cells by Cui, Jingbiao, Gibson, Ursula J

“…Nanopillar heterojunctions composed of n-type ZnO nanowire arrays embedded in p-type Cu2O thin films were fabricated by using a simple two-step…”
Get full text

Low loss polycrystalline SiGe core fibers for nonlinear photonics by Ghosh, Amar N., Huang, Meng, Hawkins, Thomas W., Ballato, John, Gibson, Ursula J., Peacock, Anna C.

“…Polycrystalline silicon-germanium (SiGe) core fibers offer great potential as flexible platforms for microscale optoelectronic and nonlinear optical devices…”
Get full text

All-optical high-speed modulation of THz transmission through silicon core optical fibers by Sørgård, Trygve, Hawkins, Thomas, Ballato, John, Österberg, Ulf L, Gibson, Ursula J

“…High speed optical modulation of THz radiation is of interest for information processing and communications applications. In this paper infrared femtosecond…”
Get full text

Tapered silicon core fibers with nano-spikes for optical coupling via spliced silica fibers by Ren, Haonan, Aktas, Ozan, Franz, Yohann, Runge, Antoine F J, Hawkins, Thomas, Ballato, John, Gibson, Ursula J, Peacock, Anna C

“…Reported here is the fabrication of tapered silicon core fibers possessing a nano-spike input that facilitates their seamless splicing to conventional single…”
Get full text

Four-Wave Mixing-Based Wavelength Conversion and Parametric Amplification in Submicron Silicon Core Fibers by Wu, Dong, Shen, Li, Ren, Haonan, Huang, Meng, Lacava, Cosimo, Campling, Joseph, Sun, Shiyu, Hawkins, Thomas W., Gibson, Ursula J., Petropoulos, Periklis, Ballato, John, Peacock, Anna C.

“…Silicon core fibers represent a versatile platform for all-fiber integrated nonlinear optical applications. This paper describes the state of the art in…”
Get full text

CO2 Laser-Induced Directional Recrystallization to Produce Single Crystal Silicon-Core Optical Fibers with Low Loss by Healy, Noel, Fokine, Michael, Franz, Yohann, Hawkins, Thomas, Jones, Maxwell, Ballato, John, Peacock, Anna C., Gibson, Ursula J.

“…Reduced losses in silicon‐core fibers are obtained using CO2 laser directional recrystallization of the core. Single crystals with aspect ratios up to 1500:1…”
Get full text

Core opportunities for future optical fibers by Ballato, John, Gibson, Ursula J

“…Abstract Hair-thin strands of glass, intrinsically transparent and strong, of which many millions of kilometers are made annually, connect the world in ways…”
Get full text

Molecular beam and pulsed laser deposition of ZnS:Cr for intermediate band solar cells by Nematollahi, Mohammadreza, Yang, Xiaodong, Aas, Lars Martin Sandvik, Ghadyani, Zahra, Kildemo, Morten, Gibson, Ursula J., Reenaas, Turid W.

“…We have investigated the structural and optical properties of Cr-doped ZnS (ZnS:Cr) thin films (0–7.5at.% Cr) for use in intermediate band solar cells. The…”
Get full text

Wavelength Conversion and Supercontinuum Generation in Silicon Optical Fibers by Peacock, Anna C., Ballato, John, Campling, Joseph, Runge, Antoine F. J., Ren, Haonan, Shen, Li, Aktas, Ozan, Horak, Peter, Healy, Noel, Gibson, Ursula J.

“…This paper describes the state of the art in wavelength conversion and supercontinuum generation using glass-clad silicon core optical fibers. Such…”
Get full text

A Novel Route to Fibers with Incongruent and Volatile Crystalline Semiconductor Cores: GaAs by Zaengle, Thomasina, Gibson, Ursula J, Hawkins, Thomas W, McMillen, Colin, Ghimire, Basanta, Rao, Apparao M, Ballato, John

“…A novel extension to the molten core method was employed to realize a glass-clad, crystalline gallium arsenide (GaAs) core fiber for the first time to the…”
Get full text

Fiber Integrated Wavelength Converter Based on a Silicon Core Fiber With a Nano-Spike Coupler by Huang, Meng, Ren, Haonan, Aktas, Ozan, Shen, Li, Wang, Jian, Hawkins, Thomas W., Ballato, John, Gibson, Ursula J., Peacock, Anna C.

“…An all-fiber integrated nonlinear silicon photonic wavelength converter has been proposed and fabricated using the silicon core fiber platform. The silicon…”
Get full text

Pulsed laser ablation and deposition of ZnS:Cr by Nematollahi, Mohammadreza, Yang, Xiaodong, Gibson, Ursula J., Reenaas, Turid W.

“…We present a method to deposit films with a range of doping concentrations/dilute alloys, from a single target in pulsed laser deposition (PLD). Cr-doped ZnS…”
Get full text

Light trapping in horizontally aligned silicon microwire solar cells by Martinsen, Fredrik A, Smeltzer, Benjamin K, Ballato, John, Hawkins, Thomas, Jones, Max, Gibson, Ursula J

“…In this study, we demonstrate a solar cell design based on horizontally aligned microwires fabricated from 99.98% pure silicon via the molten core fiber…”
Get full text

CO2 laser annealed SiGe core optical fibers with radial Ge concentration gradients by Wu, Wei, Balci, Mustafa, Song, Seunghan, Liu, Chunxin, Fokine, Michael, Laurell, Fredrik, Hawkins, Thomas, Ballato, John, Gibson, Ursula J

“…CO2 laser annealing of SiGe core, glass-clad optical fibers is a powerful technique for the production of single-crystal cores with spatially varying Ge…”
Get full text