Results 71 to 80 of about 14,535 (306)

Thin film wavelength converters for photonic integrated circuits

, 2016
Quasi-phase-matched (QPM) wavelength converters are highly desirable for emerging nonlinear optics applications in photonic integrated circuits, but available waveguide and quasi-phase-matching technologies have so far constrained their realization. In
Bowers, John E., Volet, Nicolas, Peters, Jon, Li, Yifei, Chang, Lin, Wang, Leiran   +5 more
core   +1 more source

Self‐Assembled Inorganic Nanomembrane Tubes: Rolled‐Up Piezoelectrics for Microacoustic Wave‐Based Actuators and Sensors

Advanced Materials, EarlyView.
This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau, Christian N. Saggau, Stefan Baunack, Thomas Gemming, Yara Abdelaal, Robert Weser, Oliver G. Schmidt, Hagen Schmidt, Andreas Winkler, Mariana Medina‐Sánchez   +9 more
wiley   +1 more source

Perovskite spin light-emitting diodes with simultaneously high electroluminescence dissymmetry and high external quantum efficiency

Nature Communications
Realizing high electroluminescence dissymmetric factor and high external quantum efficiency at the same time is challenging in light-emitting diodes with direct circularly polarized emission.
Shuai He, Weixi Lin, De Yu, Junwei Shi, Zhen Yin, Changjiu Sun, Haoliang Liu, Chen Zhang, Jianyu Yuan, Sai Bai, Shumin Xiao, Guankui Long, Mingjian Yuan, Yuanzhi Jiang, Yimu Chen, Qinghai Song   +15 more
doaj   +1 more source

Azaporphyrinoid‐Based Photo‐ and Electroactive Architectures for Advanced Functional Materials

Advanced Materials, EarlyView.
A long‐standing collaboration between the Torres and Guldi groups has yielded diverse azaporphyrinoid‐based donor‐acceptor nanohybrids with promising applications in solar energy conversion. This conspectus highlights key molecular platforms and structure‐function relationships that govern light and charge management, supporting the rational design of ...
Jorge Labella, Kobra Azizi, Dirk M. Guldi, Tomás Torres   +3 more
wiley   +1 more source

The Goldilocks principle of learning unitaries by interlacing fixed operators with programmable phase shifters on a photonic chip

Scientific Reports
Programmable photonic integrated circuits represent an emerging technology that amalgamates photonics and electronics, paving the way for light-based information processing at high speeds and low power consumption.
Kevin Zelaya, Matthew Markowitz, Mohammad-Ali Miri   +2 more
doaj   +1 more source

Slotted photonic crystal sensors [PDF]

, 2013
Optical biosensors are increasingly being considered for lab-on-a-chip applications due to their benefits such as small size, biocompatibility, passive behaviour and lack of the need for fluorescent labels.
Mark Scullion, Krauss, Thomas, Andrea Di Falco, Thomas Krauss, Scullion, Mark G., Di Falco, Andrea, Thomas F. Krauss, Krauss, Thomas F., Mark G. Scullion, Scullion, Mark   +9 more
core   +1 more source

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

Silicon nitride photonic integrated circuits for optical coherence tomography

We report on the progress of our efforts to apply silicon nitride photonic integrated circuits (PIC) to the miniaturization of optical coherence tomography (OCT) with the goal of facilitating its widespread use in ophthalmology at the point of care.
Nguyen, Quang, Müellner, Paul, Gloor, Stefan, Eggeling, Moritz, Maese-Novo, Alejandro, Rist, Desiree, Sagmeister, Martin, O’Brien, Peter A., Butler, Sharon M., Ferraro, Filippo J., Berciano, Mathias, Nevlacsil, Stefan, Van Dorpe, Pol, Seyringer, Dana, Kraft, Jochen, Cipriano, Pietro, Yurtsever, Günay, Thiel, Michael, Blaicher, Matthias, Morrissey, Padraic Edward, Drexler, Wolfgang, Hainberger, Rainer, Zimmermann, Horst K., Morozov, Yevhenii M., Agneter, Anja, Richter, Stefan, Duelk, Marcus, Vlaskovic, Marko, Verwaal, Nanko, Trappen, Mareike D., Gradkowski, Kamil, Kempe, Michael, Rank, Elisabet A.   +32 more
core   +1 more source

Single‐Chromophore Homojunction Organic Solar Cells: A Path to Simplicity and Efficiency

Advanced Materials, EarlyView.
This perspective discusses how the intrinsic optoelectronic properties of organic semiconductors, their molecular packing in the solid‐state, and internal energetic gradients within a device can enable free‐charge carrier generation in homojunction organic solar cells.
Shaun McAnally, Paul L. Burn, Paul E. Shaw   +2 more
wiley   +1 more source

Tolerant polarization converter for InGaAsP-InP photonic integrated circuits

, 2013
We report the fabrication and characterization of a new polarization converter for InGaAsP-InP photonic integrated circuits. The converter consists of two right trapezoidal sections with the angled sidewalls etched wetly.
Smit, M.K., Tol, van der, J.J.G.M., Dzibrou, D.O.   +2 more
core   +1 more source