Results 61 to 70 of about 35,955 (312)

Role of the Recombination Zone in Organic Light‐Emitting Devices

Advanced Materials, EarlyView.
This review summarizes the critical role of the recombination zone in organic light‐emitting diodes (OLEDs). We highlight that broadening the recombination zone in OLEDs based on emissive layers with balanced charge transport and high photoluminescence quantum yields provides a promising route toward achieving both long operational lifetime and high ...
Yungui Li, Karl Leo
wiley   +1 more source

The femtosecond laser fabrication of waveguide structures in transparent crystals

APL Photonics
An optical waveguide is the basic structure of quantum optics, which has a strong confinement effect on light. It can complete the low-loss transmission of light and the enhancement of the nonlinear effect.
Zhi-Ming Huo, Gong Wang, Yun-Fei Li, He Cao, Zishuo Xu, Zheng Wang, Ren Zhang, Dong-Zhou Wang, Yu Yu, Yulei Wang, Zhiwei Lu   +10 more
doaj   +1 more source

Hydrogel for light delivery in biomedical applications

Bioactive Materials
Traditional optical waveguides or mediums are often silica-based materials, but their applications in biomedicine and healthcare are limited due to the poor biocompatibility and unsuitable mechanical properties. In term of the applications in human body,
Pek Yin Michelle Yew, Pei Lin Chee, Qianyu Lin, Cally Owh, Jiayi Li, Qing Qing Dou, Xian Jun Loh, Dan Kai, Yong Zhang   +8 more
doaj   +1 more source

Difference frequency generation by quasi-phase matching in periodically intermixed semiconductor superlattice waveguides [PDF]

, 2011
Wavelength conversion by difference frequency generation is demonstrated in domain-disordered quasi-phase-matched waveguides. The waveguide structure consisted of a GaAs/AlGaAs superlattice core that was periodically intermixed by ion implantation.
David C. Hutchings, Helmy, A.S., Sean J. Wagner, Iliya Sigal, Wagner, S.J., Younis, U., Sigal, I., Holmes, B.M., Amr S. Helmy, Hutchings, D.C., Barry M. Holmes, Usman Younis, Aitchison, S.J., J. Stewart Aitchison   +13 more
core   +1 more source

Localized Temperature Monitoring in Mouse Brain during Light Delivery via a Non‐Planar Tapered Fiber‐Integrated µRTD Sensor

Advanced Materials, EarlyView.
We report a multifunctional tapered optical fiber integrating a conformal micro‐resistance temperature detector (µRTD) for local, real‐time thermometry during optical stimulation. The platform combines light‐delivery and temperature sensing within a minimally invasive footprint, enabling detection of sub‐degree cortical heating under representative ...
Antonio Balena, Marco Bianco, Barbara Spagnolo, Muhammad Fayyaz Kashif, Alberto Bramati, Massimo De Vittorio, Ferruccio Pisanello   +6 more
wiley   +1 more source

Polymer multimode waveguide optical and electronic PCB manufacturing

, 2009
The paper describes the research in the £1.3 million IeMRC Integrated Optical and Electronic Interconnect PCB Manufacturing (OPCB) Flagship Project in which 8 companies and 3 universities carry out collaborative research and which was formed and is ...
Selviah, D.R., David R. Selviah
core   +1 more source

Nonlinearities in silicon optical fibers [PDF]

, 2011
The nonlinear propagation characteristics in a hydrogenated amorphous silicon core optical fiber are investigated to demonstrate ultra-fast all-optical switching by cross-absorption ...
Day, T.D., Peacock, A.C., J. V. Badding, Sazio, P.J.A., P. J. A. Sazio, N. Healy, Watts, R.T., R. T. Watts, Sparks, J.R., Slavík, R., R. Slavík, A. C. Peacock, J. R. Sparks, Mehta, P., Healy, N., Badding, J.V., P. Mehta, T. D. Day   +17 more
core   +1 more source

Ultra‐Confinement of Polaritons in Single Atomic Layer Ag Photonic Quantum Dots

Advanced Materials, Volume 38, Issue 36, 26 June 2026.
Strong confinement of surface phonon polaritons of silicon carbide was achieved in photonic quantum dots fabricated from van der Waals heterostructure of epitaxial graphene over single‐atomic layer silver. Scattering‐type scanning near‐field optical microscopy combined with an analytical approach, developed to reveal local propagation constants with ...
Xinyi Li, Tetyana Ignatova, Chengye Dong, Krishnan Mekkanamkulam Ananthanarayanan, Rinu Abraham Maniyara, Arpit Jain, Furkan Turker, Vinay Kammarchedu, Aida Ebrahimi, Joshua A. Robinson, Slava V. Rotkin   +10 more
wiley   +1 more source

Integrated optical and electronic interconnect printed circuit board manufacturing

, 2008
Introduction: At high bit rates copper tracks in printed circuit boards (PCBs) suffer severe loss and pulse distortion due to radiation of electromagnetic waves, dispersion and bandwidth limitations.
Selviah, D.R., Suyal, H., Milward, D., Bagshiahi, Hadi, Walker, A.C., Anibal Fernandez, F., Chappell, J., Hutt, David A., Hutt, D.A., Conway, P.P., McCarthy, A., Selviah, David R., Zakariyah, S.S., Fernández, Aníbal, Bagshiahi, H., Walker, Andy C., Papakonstantinou, I., Chappell, John, Suyal, Himanshu, McCarthy, Aongus, Conway, Paul P., Milward, Dave, Wang, K., Zakariyah, Shefiu S., Papakonstantinou, Ioannis, Fernández, F.A., Wang, Kai, Baghsiahi, H.   +27 more
core   +1 more source

Mode dispersion and delay characteristics of optical waveguides using equivalent TL circuits [PDF]

, 2005
A new analysis leading to an exact and efficient algorithm is presented for calculating directly and without numerical differentiation the mode dispersion characteristics of cylindrical dielectric waveguides of arbitrary refractive-index profile. The new
Boucouvalas, Anthony C., Qian, Xin
core   +1 more source