Results 71 to 80 of about 3,964,041 (251)

Electrically Induced Phase Transition and Synaptic Functionality in MoTe2/Graphene Memristors

Advanced Functional Materials, EarlyView.
An electrically induced reversible 2H ↔ 1T′ phase transition is demonstrated in a vertical Au/Ti/MoTe2/graphene memristor with a laterally contacted graphene electrode. Resistive switching proceeds through a compositionally invariant amorphous/2H ↔ amorphous/1T′ transformation, in which a self‐formed amorphous MoTe2 interfacial region is proposed to ...
Chien‐Hua Wang, Mu‐Pai Lee, Jhen‐Dong Tsai, Liang‐Ying Hsieh, Jui‐Yuan Chen, Chun‐Wei Huang, Yen‐Fu Lin, Wen‐Wei Wu   +7 more
wiley   +1 more source

An Adaptive Inhibitory WSe2 Transistor for Retinomorphic In‐Sensor Image Processing

Advanced Functional Materials, EarlyView.
Conventional retinomorphic devices typically require deliberate gate‐bias tuning for each illumination condition. In this paper, we demonstrate an adaptive inhibitory WSe2 transistor that uses photo‐induced regime shift between the subthreshold and accumulation modes to achieve decision‐free, intensity‐adaptive image processing within a single pixel ...
Juhwan Baek, Junhwa Oh, Hyeonjung Kim, Minsik Park, Haein Cho, Jin Young Park, Hyeonchang Son, Taeyun Kim, Sung‐Un An, Yamin Zhang, Hyeon‐Jin Shin, Seyong Oh, Dong‐Ho Kang   +12 more
wiley   +1 more source

Nanoscale detection and real-time monitoring of free radicals in a single living cell under the stimulation of targeting moieties using a nanodiamond quantum sensor

Functional Diamond
Intracellular radicals play important roles in cell signaling and regulation of growth factors, cytokines, transcription, apoptosis, and immunomodulation, among others.
Kaiqi Wu, Qi Lu, Maabur Sow, Priyadharshini Balasubramanian, Fedor Jelezko, Tanja Weil, Yingke Wu   +6 more
doaj   +1 more source

Preparing single SiV− center in nanodiamonds for external, optical coupling with access to all degrees of freedom

New Journal of Physics, 2019
Optical coupling enables intermediate- and long-range interactions between distant quantum emitters. Such interaction may be the basic element in bottom-up approaches of coupled spin systems or for integrated quantum photonics and quantum plasmonics ...
Stefan Häußler, Lukas Hartung, Konstantin G Fehler, Lukas Antoniuk, Liudmila F Kulikova, Valery A Davydov, Viatcheslav N Agafonov, Fedor Jelezko, Alexander Kubanek   +8 more
doaj   +1 more source

Rotated waveplates in integrated waveguide optics [PDF]

, 2014
Controlling and manipulating the polarization state of a light beam is crucial in applications ranging from optical sensing to optical communications, both in the classical and quantum regime, and ultimately whenever interference phenomena are to be ...
MATALONI, Paolo, SANSONI, LINDA, Roberta Ramponi, Paolo Mataloni, CRESPI, ANDREA, RAMPONI, ROBERTA, Roberto Osellame, Fabio Sciarrino, SCIARRINO, Fabio, Andrea Crespi, Giacomo Corrielli, Riccardo Geremia, Andrea Santinelli, Linda Sansoni, Sansoni Linda, Sciarrino Fabio, Mataloni Paolo, Santinelli Andrea, Corrielli Giacomo, Geremia Riccardo, Ramponi Roberta, Osellame Roberto, Crespi Andrea   +22 more
core   +1 more source

Sub‐1 ms Optoelectronic Synapse Based on {ZnCdO/ZnO} Multilayer Structure for High‐Speed Neuromorphic Vision Systems

Advanced Functional Materials, EarlyView.
Eu‐doped {ZnCdO/ZnO} structures grown on Si are developed, showcasing dual‐functionality controlled by europium doping. While high europium concentration transforms the device into an ultrafast, self‐powered photodetector, low‐doped structures can be used as an optoelectronic synapse.
Igor Perlikowski, Eunika Zielony, Adrian Kaim, Ewa Przeździecka   +3 more
wiley   +1 more source

High-gain effects in broadband continuous-wave parametric down conversion sources and measurements with undetected photons

New Journal of Physics
We study theoretically how high-gain effects affect the measurement outcome of visible signal spectra in undetected photon measurement schemes. We consider two interferometric configurations: firstly, the SU(1,1) interferometer where the idler incurs ...
Martin Houde, Franz Roeder, Christine Silberhorn, Benjamin Brecht, Nicolás Quesada   +4 more
doaj   +1 more source

Circularly Polarized Electroluminescence and Spin‐Polarized Carrier Transport in Chiral‐Doped Polymer Films

Advanced Functional Materials, EarlyView.
Chiral dopants induce supramolecular chirality in an achiral polymer (PFO), generating spin‐polarized carriers via the chiral‐induced spin selectivity (CISS) and suggesting a possible contribution of Spin‐polarized carrier transport to circularly polarized electroluminescence (CPEL).
Kazuyuki Asahi, Masashi Hasegawa, Yuuya Nagata, Tamaki Nakano, Hiroyuki Nishikawa   +4 more
wiley   +1 more source

Quantum fisher information analysis for absorption measurements with undetected photons

JPhys Photonics
We theoretically compare the quantum Fisher information (QFI) for three configurations of absorption spectroscopy with undetected idler photons: an SU(1,1) interferometer with inter-source idler loss, an induced-coherence (IC) setup in which the idler ...
Martin Houde, Franz Roeder, Christine Silberhorn, Benjamin Brecht, Nicolás Quesada   +4 more
doaj   +1 more source

Enhanced microwave-atom coupling via quadrupole transition-dressed Rydberg atoms

Frontiers in Physics
The power broadening of a coupling laser can be converted into two-photon detuning by electromagnetically induced transparency (EIT), resulting in a residual Doppler effect.
Yijie Du, Yijie Du, Nan Cong, Yao Liu, Ziyao Lyu, Jun He, Renfu Yang   +6 more
doaj   +1 more source