Results 61 to 70 of about 370,468 (313)

Optical signal processing via two-photon absorption in a semiconductor microcavity for the next generation of high-speed optical communications network [PDF]

, 2006
Due to the introduction of new broadband services, individual line data rates are expected to exceed 100 Gb/s in the near future. To operate at these high speeds, new optical signal processing techniques will have to be developed.
Guo, Wei Hua, O\u27Dowd, John, Krug, T., O'Dowd, John, Bradley, L., Donegan, John Francis, Folliot, Hervé, Maguire, P.J., O'Dowd, J., Guo, W.H., Donegan, J., Folliot, H., Lynch, M., Barry, Liam P., Lynch, Michael, Bradley, Ann Louise, Maguire, Paul J., Barry, Liam, P.   +17 more
core   +1 more source

Optical phase shifting with acousto-optic devices

Optics Letters, 2005
A novel optical phase-shifting method based on a well-known acousto-optic interaction is proposed. By using a pair of acousto-optic modulators (AOMs) and properly aligning them, we construct an optical phase shifter that can directly control the phase of a collimated beam.
Li, Enbang, Yao, Jianquan, Yu, Daoyin, Xi, Jiangtao, Chicharo, Joe F   +4 more
openaire   +4 more sources

Value of MRI Outcomes for Preventive and Early‐Stage Trials in Spinocerebellar Ataxias 1 and 3

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the value of MRI outcomes as endpoints for preventive and early‐stage trials of two polyglutamine spinocerebellar ataxias (SCAs). Methods A cohort of 100 participants (23 SCA1, 63 SCA3, median Scale for the Assessment and Rating of Ataxia (SARA) score = 5, 42% preataxic, and 14 gene‐negative controls) was scanned at 3T up ...
Thiago J. R. Rezende, Emilien Petit, Young Woo Park, Sophie Tezenas du Montcel, James M. Joers, Jonathan M. DuBois, H. Moore Arnold, Michal Povazan, Ipek Özdemir, Guita Banan, Romain Valabregue, Philipp Ehses, Jennifer Faber, Chiadi U. Onyike, Peter B. Barker, Jeremy D. Schmahmann, Eva‐Maria Ratai, Sub H. Subramony, Thomas H. Mareci, Khalaf O. Bushara, Henry Paulson, Thomas Klockgether, Alexandra Durr, Tetsuo Ashizawa, Christophe Lenglet, Gülin Öz, READISCA Investigators   +26 more
wiley   +1 more source

Organic polaritonic light-emitting diodes with high luminance and color purity toward laser displays

Light: Science & Applications
Achieving high-luminescence organic light-emitting devices (OLEDs) with narrowband emission and high color purity is important in various optoelectronic fields.
Jianbo De, Ruiyang Zhao, Fan Yin, Chunling Gu, Teng Long, Han Huang, Xue Cao, Cunbin An, Bo Liao, Hongbing Fu, Qing Liao   +10 more
doaj   +1 more source

Broadband Transformation Optics Devices [PDF]

Materials, 2010
Recently we have suggested that two-dimensional broadband transformation optics devices based on metamaterial designs may be built using tapered waveguides. Here we review application of this principle to broadband electromagnetic cloaking, trapped rainbow, and novel microscopy devices.
Smolyaninova, Vera N., Smolyaninov, Igor I., Kildishev, Alexander V., Shalaev, Vladimir M.   +3 more
openaire   +3 more sources

Feasibility and Tolerability of Performing Portable MRI for Neurological Disorders in an Outpatient Neurology Clinic: A Prospective Cohort

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Accessing brain magnetic resonance imaging (MRI) can be challenging, especially for underserved patients, which may lead to disparities in neurological diagnosis. Method This mixed‐methods study enrolled adults with one of four neurological disorders: mild cognitive impairment or dementia of the Alzheimer type, multiple sclerosis ...
Maya L. Mastick, Nomin Enkhtsetseg, Joseph Sadok, Matheus Mochetti, Annabel Sorby Adams, Jennifer Guo, Cristina Trapaga Hacker, Isabella Gomez Hjerthen, Seungwon Lee, Siddharth Satish, Andrew S. Ham, Justin Hill, Denis Balaban, Kevin Kyle, Rebecca L. Gillani, Marcelo Matiello, Aleksandar Videnovic, Eric C. Klawiter, W. Taylor Kimberly, Farrah J. Mateen   +19 more
wiley   +1 more source

Development of Defect-Rich WO_3-x/TiO₂ Heterojunction Toward Dual-Functional Enhancement: Boosting SERS and Photocatalytic Performance

Nanomaterials
Semiconductors have emerged as promising candidates for surface-enhanced Raman scattering (SERS) applications due to their inexpensiveness and good chemical stability.
Xunfei He, Yinyan Gong, Lengyuan Niu, Can Li   +3 more
doaj   +1 more source

Cascaded forward Brillouin scattering to all Stokes orders

New Journal of Physics, 2017
Inelastic scattering processes such as Brillouin scattering can often function in cascaded regimes and this is likely to occur in certain integrated opto-acoustic devices.
C Wolff, B Stiller, B J Eggleton, M J Steel, C G Poulton   +4 more
doaj   +1 more source

Microstructured optical fiber devices

Optics Express, 2001
We present several applications of microstructured optical fibers and study their modal characteristics by using Bragg gratings inscribed into photosensitive core regions designed into the air-silica microstructure. The unique characteristics revealed in these studies enable a number of functionalities including tunability and enhanced nonlinearity ...
B, Eggleton, C, Kerbage, P, Westbrook, R, Windeler, A, Hale   +4 more
openaire   +2 more sources

Complementarity of Long‐Reads and Optical Mapping in Parkinson's Disease for Structural Variants

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Long‐read sequencing and optical genome mapping technologies have the ability to detect large and complex structural variants. This has led to the discovery of novel pathogenic variants in neurodegenerative movement disorders. Thus, we aimed to systematically compare the SV detection capabilities of OGM and ONT in Parkinson's disease.
André Fienemann, Theresa Lüth, Susen Schaake, Carolin Gabbert, Marius Möller, Hauke Busch, Katja Lohmann, Jonas A. Gustafson, Danny E. Miller, Kensuke Daida, Manabu Funayama, Nobutaka Hattori, Samia Ben Sassi, Faycel Hentati, Matthew J. Farrer, Kristian K. Ullrich, Christine Klein, Joanne Trinh   +17 more
wiley   +1 more source