Results 101 to 110 of about 26,995 (244)

Spectral power stabilization against temperature variations in multimode fiber Bragg gratings

Applied Physics Express
Fiber Bragg gratings (FBGs) have been extensively used for single-point and multi-point measurements, mostly inscribed in single-mode fibers.
Kun Wang, Kazuya Kishizawa, Kohei Noda, Wolfgang Kurz, Xingchen Dong, Alexander W. Koch, Heeyoung Lee, Kentaro Nakamura, Yosuke Mizuno   +8 more
doaj   +1 more source

Multimodal Super‐Resolution Imaging of Nitrogen‐Vacancy Centers via High‐Index‐Induced Structured Illumination Microscopy and Optically Detected Magnetic Resonance Spectrometry

Advanced Science, EarlyView.
This work demonstrates a multimodal super‐resolution imaging technique for nitrogen‐vacancy centers by integrating high‐index‐induced structured illumination with optically detected magnetic resonance. By utilizing diamond's high refractive index, the method achieves sub‐100‐nm spatial resolution and enhanced localization. This dual‐modulation strategy
Kyu Ri Choi, Mohammed Zia Jalaludeen, Samuel Begumya, Yan Qiu Du, Dong Hee Park, Bin Chan Joo, Jae Hwan Yoo, Síle Nic Chormaic, Shilong Li, Yeon Ui Lee   +9 more
wiley   +1 more source

Securing Data in Multimode Fibers by Exploiting Mode-Dependent Light Propagation Effects. [PDF]

Research (Wash D C), 2023
Rothe S, Besser KL, Krause D, Kuschmierz R, Koukourakis N, Jorswieck E, Czarske JW.   +6 more
europepmc   +1 more source

Surface Plasmon Enhanced Photoluminescence of Carbon Dots Formed In Situ on Silver Gratings

Advanced Science, EarlyView.
Carbon emitters formed in situ on a silver grating via plasmonic catalysis yield enhanced spontaneous emission by preferential radiative decay into surface plasmons. Enhancement manifests as emission exhibiting characteristics of coherence (polarization, directionality), and accelerated lifetimes of ∼30 ps, yielding Purcell factors of ∼70.
Maryam Sadat Amiri Naeini, Jaspreet Walia, Luis Angel Mayoral‐Astorga, Hyung Woo Choi, Arnaud Weck, Pierre Berini   +5 more
wiley   +1 more source

Integrated photonic building blocks for next-generation astronomical instrumentation II: the multimode to single mode transition

, 2013
There are numerous advantages to exploiting diffraction-limited instrumentation at astronomical observatories, which include smaller footprints, less mechanical and thermal instabilities and high levels of performance.
Gross, Simon, Ireland, Michael J., Jovanovic, Nemanja, Lawrence, Jon S., Spaleniak, Izabela, Withford, Michael J.   +5 more
core   +1 more source

Understanding the Interplay Between Thermal Activation, Diffusion, and Phase Segregation of Molecular Dopants Blended with Polymeric Semiconductors

Advanced Electronic Materials, EarlyView.
The use of air stable but thermally labile molecules provides an efficient strategy for the N‐type doping of organic semiconductors with relatively low electron affinities. Design criteria for efficient dopants should also take into account diffusion and phase segregation that cannot be decoupled from thermally activated doping.
Francesca Pallini, Sara Mattiello, Mauro Sassi, Gabriele Paoli, Giuseppe Mattioli, Pietro Rossi, Giulia Coco, Alberto D. Scaccabarozzi, Brian Minki Kim, Pietro Mariani, Hiba Wakidi, Sadie M. Flagg, Massimiliano D'Arienzo, Mario Caironi, Thuc‐Quyen Nguyen, Luca Beverina   +15 more
wiley   +1 more source

Theory of Stimulated Brillouin Scattering in Fibers for Highly Multimode Excitations

Physical Review X
Stimulated Brillouin scattering (SBS) is often an unwanted loss mechanism in both active and passive fibers. Highly multimode excitation of fibers has been proposed as a novel route toward efficient SBS suppression.
Kabish Wisal, Stephen C. Warren-Smith, Chun-Wei Chen, Hui Cao, A. Douglas Stone   +4 more
doaj   +1 more source

Optimal focusing for maximal collection of entangled narrow-band photon pairs into single-mode fibers

, 2005
We present a theoretical and experimental investigation of the emission characteristics and the flux of photon pairs generated by spontaneous parametric downconversion in quasi-phase matched bulk crystals for the use in quantum communication sources.
A. E. Siegman, D. N. Klyshko, Daniel Ljunggren, L. Mandel, Maria Tengner, S. Fasel, S. Tanzilli, T. Aichele, T. B. Pittman, T. Y. Fan   +9 more
core   +1 more source

Fundamental Challenges, Physical Implementations, and Integration Strategies for Ising Machines in Large‐Scale Optimization Tasks

Advanced Electronic Materials, EarlyView.
Ising machines are emerging as specialized hardware solvers for computationally hard optimization problems. This review examines five major platforms—digital CMOS, analog CMOS, emerging devices, coherent optics, and quantum systems—highlighting physics‐rooted advantages and shared bottlenecks in scalability and connectivity.
Hyunjun Lee, Joon Pyo Kim, Sanghyeon Kim
wiley   +1 more source

Multimode waveguides of Photodefinable epoxy for optical backplane applications [PDF]

, 2006
We developed photodefined, multimode-fiber compatible waveguides based on epoxies. These waveguides will be embedded in backplane PCB’s for optical interconnect applications using 850 nm VCSELs as light sources.
Diemeer, M.B.J., Driessen, A., Hilderink, L.T.H., Kelderman, H.   +3 more
core   +1 more source