Results 91 to 100 of about 134,248 (260)

Multiplexed Readout of Transmon Qubits with Josephson Bifurcation Amplifiers [PDF]

, 2014
Achieving individual qubit readout is a major challenge in the development of scalable superconducting quantum processors. We have implemented the multiplexed readout of a four transmon qubit circuit using non-linear resonators operated as Josephson ...
A. Blais, B. Royer, D. Esteve, D. Vion, K. Juliusson, P. Bertet, V. Schmitt, X. Zhou   +7 more
core   +4 more sources

Spin‐Dependent Photoluminescence in Carbon‐Based Quantum Dots

Advanced Materials, Volume 38, Issue 17, 20 March 2026.
Here we report, for the first time, room‐temperature magneto‐photoluminescence and optically detected electron spin‐resonance in carbon quantum dots (CQD). We perform measurements on a series of amino acid derived CQD at room temperature and demonstrate their sensing potential by detecting paramagnetic molecules in solution.
Erin S. Grant, Joseph F. Olorunyomi, Sam C. Scholten, Islay O. Robertson, Amanda N. Abraham, Nandish H. Srikantamurthy, Billy J. Murdoch, Edwin L. H. Maye, Blanca del Rosal, Alexander J. Healey, Cara M. Doherty, Philipp Reineck, Xavier Mulet, Jean‐Philippe Tetienne, David A. Broadway   +14 more
wiley   +1 more source

Behavioral Modeling of GaN Doherty Power Amplifiers Using Memoryless Polar Domain Functions and Deep Neural Networks

IEEE Access, 2020
In this paper, novel Doherty Power Amplifier (DPA) models are presented. The motivation behind the proposed models is to accurately predict static nonlinearities in the compression regions of the carrier and peaking amplifiers.
Yahya Khawam, Oualid Hammi, Lutfi Albasha, Hasan Mir   +3 more
doaj   +1 more source

Parallel Doherty RF Power Amplifier For WiMAX Applications [PDF]

, 2018
: This work covers the design and implementation of a Parallel Doherty RF Power Amplifier in a GaN HEMT process for medium power macro-cell (16W) base station applications.

core  

Bifurcation, mode coupling and noise in a nonlinear multimode superconducting RF resonator

, 2013
The addition of nonlinearity to an harmonic resonator provides a route to complex dynamical behaviour of resonant modes, including coupling between them.
Ithier, G., Meeson, P. J., Tancredi, G.
core   +1 more source

Photo‐Induced Phase Segregation in Mixed Halide Perovskite Structures and Various Methods of Suppression

Advanced Materials Interfaces, Volume 13, Issue 6, 16 March 2026.
Mixed halide perovskites suffer from photo‐induced phase segregation, leading to compositional instability and degraded device performance. This review summarizes the dynamic behavior and kinetics of phase segregation in thin films under external stimuli, analyzes compositional and environmental effects, and proposes suppression strategies to enhance ...
Yong Hyun Kim, Hyojung Kim
wiley   +1 more source

Enhancing fluorescence excitation and collection from the nitrogen-vacancy center in diamond through a micro-concave mirror

, 2018
We experimentally demonstrate a simple and robust optical fibers based method to achieve simultaneously efficient excitation and fluorescence collection from Nitrogen-Vacancy (NV) defects containing micro-crystalline diamond.
Arumugam, Sri Ranjini, Balasubramanian, Gopalakrishnan, Chang, Huan-Cheng, Duan, Dewen, Isoya, Junichi, Kavatamane, Vinaya Kumar, Onoda, Shinobu, Rahane, Ganesh, Sumiya, Hitoshi, Tzeng, Yan-Kai   +9 more
core   +1 more source

Green Cellular Networks: A Survey, Some Research Issues and Challenges

, 2011
Energy efficiency in cellular networks is a growing concern for cellular operators to not only maintain profitability, but also to reduce the overall environment effects.
Bhargava, Vijay K., Boostanimehr, Hamidreza, Hasan, Ziaul   +2 more
core   +1 more source

Load Mismatch Compensation of Load-Modulated Power Amplifiers: A Comprehensive Review

Energies
With the diversification, acceleration, and arraying of wireless communication systems, power amplifiers (PAs) face stricter demands in terms of RF operation bandwidth, high-efficiency power range, and load mismatch compensation.
Yufeng Zang, Weimin Shi, Jinting Liu, Tian Qi, Mingyu Li   +4 more
doaj   +1 more source

A 28-GHz CMOS-65 nm Dual Mode Class-J Doherty Power Amplifier With Integrated Class-G Driver and Impedance-Modulated- Quadrature-Transformer Achieving 21% Back-Off Efficiency

IEEE Access
In this paper, a CMOS Class-J Doherty power amplifier (PA) integrating a Class-G driver and an Impedance-Modulated-Quadrature-Transformer (IMQT) to enhance back-off efficiency for multimode operations is presented.
Selvakumar Mariappan, Jagadheswaran Rajendran, Norhamizah Idros, Sofiyah Sal Hamid, Asrulnizam Bin Abd Manaf, Narendra Kumar, Abdullah Alghaihab, Arokia Nathan, Binboga Siddik Yarman   +8 more
doaj   +1 more source