Search Results - "Riesen, Nicolas"

Efficient Generation of Stable Sm2+ in Nanocrystalline BaLiF3:Sm3+ by UV- and X‑Irradiation by Chowdhury, Nishita, Riesen, Nicolas, Riesen, Hans

“…In recent decades, storage phosphors have found widespread applications in the fields of dosimetry and computed radiography due to their impressive properties,…”
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Fluorescent and lasing whispering gallery mode microresonators for sensing applications by Reynolds, Tess, Riesen, Nicolas, Meldrum, Al, Fan, Xudong, Hall, Jonathan M. M., Monro, Tanya M., François, Alexandre

“…Whispering gallery modes (WGMs) have been exploited for a broad range of sensing applications. However, the vast majority of WGM sensors consist of passive…”
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Three-dimensional ultra-broadband integrated tapered mode multiplexers by Gross, Simon, Riesen, Nicolas, Love, John D., Withford, Michael J.

“…The demonstration of a three‐dimensional tapered mode‐selective coupler in a photonic chip is reported. This waveguide‐based, ultra‐broadband mode multiplexer…”
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Ultra-Broadband Tapered Mode-Selective Couplers for Few-Mode Optical Fiber Networks by Riesen, Nicolas, Love, John D.

“…Tapered mode-selective couplers are shown to allow for ultra-broadband mode-division multiplexing of few-mode optical fiber. Using appropriate three-core…”
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Polymer based whispering gallery mode laser for biosensing applications by François, Alexandre, Riesen, Nicolas, Ji, Hong, Afshar V., Shahraam, Monro, Tanya M.

“…Whispering gallery mode lasers are of interest for a wide range of applications and especially biological sensing, exploiting the dependence of the resonance…”
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Monolithic mode-selective few-mode multicore fiber multiplexers by Riesen, Nicolas, Gross, Simon, Love, John D., Sasaki, Yusuke, Withford, Michael J.

“…With the capacity limits of standard single-mode optical fiber fast approaching, new technologies such as space-division multiplexing are required to avoid an…”
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Lasing of whispering gallery modes in optofluidic microcapillaries by François, Alexandre, Riesen, Nicolas, Gardner, Kirsty, Monro, Tanya M, Meldrum, Al

“…This paper demonstrates lasing of the whispering gallery modes in polymer coated optofluidic capillaries and their application to refractive index sensing. The…”
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Q-factor limits for far-field detection of whispering gallery modes in active microspheres by Riesen, Nicolas, Reynolds, Tess, François, Alexandre, Henderson, Matthew R, Monro, Tanya M

“…This paper investigates the Q-factor limits imposed on the far-field detection of the whispering gallery modes of active microspherical resonators. It is shown…”
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Caged-Sphere Optofluidic Sensors: Whispering Gallery Resonators in Wicking Microfluidics by Riesen, Nicolas, Peterkovic, Zane Q, Guan, Bin, François, Alexandre, Lancaster, David G, Priest, Craig

“…The rapid development of optofluidic technologies in recent years has seen the need for sensing platforms with ease-of-use, simple sample manipulation, and…”
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Dynamic Self-Referencing Approach to Whispering Gallery Mode Biosensing and Its Application to Measurement within Undiluted Serum by Reynolds, Tess, François, Alexandre, Riesen, Nicolas, Turvey, Michelle E, Nicholls, Stephen J, Hoffmann, Peter, Monro, Tanya M

“…Biosensing within complex biological samples requires a sensor that can compensate for fluctuations in the signal due to changing environmental conditions and…”
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Mode-Splitting for Refractive Index Sensing in Fluorescent Whispering Gallery Mode Microspheres with Broken Symmetry by Kang, Yvonne Q, François, Alexandre, Riesen, Nicolas, Monro, Tanya M

“…Whispering gallery mode (WGM) resonators have become increasingly diverse in terms of both architecture and applications, especially as refractometric sensors,…”
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Highly efficient valence state switching of samarium in BaFCl:Sm nanocrystals in the deep UV for multilevel optical data storage by Riesen, Hans, Badek, Kate, Monro, Tanya M., Riesen, Nicolas

“…We report on the highly efficient generation of stable Sm super(2+) in nanocrystalline BaFCl:Sm super(3+) by exposure in the deep UV (UV-C) below 250 nm. The…”
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Photoreduction of Sm3+ in Nanocrystalline BaFCl by Riesen, Nicolas, François, Alexandre, Badek, Kate, Monro, Tanya M, Riesen, Hans

“…We demonstrate that exposure of nanocrystalline BaFCl:Sm3+ X-ray storage phosphor to blue laser pulses with peak power densities on the order of 10 GW/cm2…”
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Method for predicting whispering gallery mode spectra of spherical microresonators by Hall, Jonathan M M, Afshar V, Shahraam, Henderson, Matthew R, François, Alexandre, Reynolds, Tess, Riesen, Nicolas, Monro, Tanya M

“…A full three-dimensional Finite-Difference Time-Domain (FDTD)-based toolkit is developed to simulate the whispering gallery modes of a microsphere in the…”
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Two-dimensional mapping of surface scatterers on an optical fiber core using selective mode launching by Peng, Lu, Nguyen, Linh Viet, Li, Jiawen, Riesen, Nicolas, Otten, Dale, Lancaster, David G., Ebendorff-Heidepriem, Heike, Warren-Smith, Stephen C.

“…The tracking of small particles is an important but challenging task for biological applications such as disease diagnostics and medical research. Current…”
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Photoluminescence of X‑ray-Induced Divalent Tm Ions in BaLiF3:Tm3+ Nanocrystals by Chowdhury, Nishita, Riesen, Nicolas, Riesen, Hans

“…A mechanochemical preparation route for nanocrystalline BaLiF3 doped with trivalent Tm3+ is reported, and the photoluminescence properties of…”
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Photoluminescence of X-ray-Induced Divalent Tm Ions in BaLiF 3 :Tm 3+ Nanocrystals by Chowdhury, Nishita, Riesen, Nicolas, Riesen, Hans

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Design guidelines for collimating or focusing graded-index fiber tips by Riesen, Nicolas, Phillips, Nicholas, Lancaster, David G.

“…Graded-index optical fiber probes suitable for focusing or collimating the output of an optical fiber at a wavelength of 1.3 µm have become an enabling…”
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Efficient Generation of Stable Sm 2+ in Nanocrystalline BaLiF 3 :Sm 3+ by UV- and X-Irradiation by Chowdhury, Nishita, Riesen, Nicolas, Riesen, Hans

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Femtosecond direct-written integrated mode couplers by Riesen, Nicolas, Gross, Simon, Love, John D, Withford, Michael J

“…We report the design and fabrication of three-dimensional integrated mode couplers operating in the C-band. These mode-selective couplers were inscribed into a…”
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