Results 61 to 70 of about 8,462 (239)

Effect of quantum dot shape of the GaAs/AlAs heterostructure on interlevel hole light absorption

Condensed Matter Physics, 2013
The effect of quantum dot shape on the hole energy spectrum and optical properties caused by the interlevel charge transition based on the 4x4 Hamiltonian has been studied for the GaAs quantum dot in the AlAs semiconductor matrix.
V.I. Boichuk, I.V. Bilynskyi, O.A. Sokolnyk, I.O. Shakleina   +3 more
doaj   +1 more source

Nanomaterials for Allergy Diagnosis and Treatment: Advances, Opportunities and Translational Challenges

Advanced Science, EarlyView.
Nanomaterials offer dual applications in allergy management. For diagnosis, nanomaterials enhance analytical sensitivity and improve detection in specific IgE and functional assays such as the basophil activation test (BAT). For allergen‐specific immunotherapy, nanomaterials enable allergen masking and controlled release, and effectively modulate the ...
Madiha Habib, Shan Jiang, Joyce ZX Lee, CW Lim, HL Yeung, Nicki YH Leung, Patrick SC Leung, Ting F Leung, Christine YY Wai   +8 more
wiley   +1 more source

Simulation of 1.3?m Quantum Dot laser by Using Four Levels Rate Equations Model

مجلة علوم ذي قار, 2019
By using four-level rate equations model (4LREM), the dynamics of optical gain and output power in 1.3?m quantum dots laser (QD-laser) is investigated. The numerical model of InAs/GaAs (QD-laser) covers four energy levels for electron. In present model,
Hussein H. Warid
doaj  

Nanoscale Optical Inhomogeneities From Compositional Segregation Within Individual GaN‐on‐Si Quantum Wells

Advanced Science, EarlyView.
This work visualizes local variations in luminescence and relates them to nanoscale chemical inhomogeneities in single InxGa1−xN quantum wells. We demonstrate that the elemental segregation is only inherent to quantum wells with high indium content. Density functional theory shows this to be the result of strain‐induced phase stabilization, explaining ...
Jing‐Yang Chung, Tara P. Mishra, Zackaria Mahfoud, Thomas E. Gage, Jianguo Wen, Katherine P. Rice, Isabelle Martin, Li Zhang, Govindo J. Syaranamual, Stephen J. Pennycook, Silvija Gradečak, Pieremanuele Canepa, Michel Bosman   +12 more
wiley   +1 more source

Electrically Tunable Orbital Coupling and Quantum Light Emission from O-Band Quantum Dot Molecules

PRX Quantum
We present the observation of electrically tunable quantum coupling of orbital states in individual InAs/InGaAs quantum dot molecules emitting in the telecom O-band (∼1.3  μm). By tuning the static electric field along the growth axis of the quantum dot (
P. S. Avdienko, L. Hanschke, Q. Buchinger, N. Akhlaq, I. Lubianskii, E. Weber, H. Riedl, M. Kamp, T. Huber-Loyola, S. Höfling, A. T. Pfenning, K. Müller, J. J. Finley   +12 more
doaj   +1 more source

Lithium Niobate Electro‐Optic Photonic Processor for Variational Quantum Eigensolver

Advanced Science, EarlyView.
An integrated lithium‐niobate‐on‐insulator ququart processor implements an electro‐optically controlled photonic variational quantum eigensolver using single photons encoded in four path modes. Bell‐basis‐emulating ququart projective measurements reduce measurement settings while achieving chemical‐accuracy‐level molecular‐energy estimation.
Jinil Lee, Ui Joon Park, Minho Choi, Hyeong‐Soon Jang, Sunghyun Moon, Hyeon Hwang, Min‐Kyo Seo, Dae‐Hwan Ahn, Sang‐Wook Han, Yong‐Su Kim, Hyounghan Kwon, Hojoong Jung   +11 more
wiley   +1 more source

Supramolecular Cadmium‐Telluride Proteoliposomal Assemblies for Real‐Time Detection of Protein‐Catalyzed Pt(II)‐Complexes Transmembrane Translocation: Cu(I)‐Pumps Are Electrogenic Pt(II)‐Drug Uniporters

Angewandte Chemie, EarlyView.
Supramolecular mercaptosuccinic acid‐capped CdTe core‐type quantum dot‐encapsulated proteoliposome assemblies (MSA‐CdTe QD PLs) have been developed to study and unambiguously demonstrate real‐time transporter‐mediated turnover translocation of Pt(II)‐based complexes by transmembrane Cu(I) P‐type ATPase pumps (CopA).
Madujika A. Horadigala Gamage, Alessandra Barbanente, Nadeesha T. Liyana Withanage, Yalini H. Wijesundara, Jeremiah J. Gassensmith, Fabio Arnesano, Giovanni Natile, Gabriele Meloni   +7 more
wiley   +2 more sources

Observation of Magnetic‐Anisotropy Crossover and High‐Temperature Skyrmions in the Dirac Magnet Fe3Ge with a Distorted Kagome Lattice

Advanced Science, EarlyView.
A temperature‐driven magnetic anisotropy crossover is revealed in the Dirac kagome magnet Fe3Ge with a distorted kagome lattice. The transition from easy‐plane to easy‐axis magnetic anisotropy stabilizes robust Bloch‐type skyrmions over an exceptionally wide temperature window of 375–650 K.
Yalei Huang, Xiaowei Lv, Bin Li, Chunqiang Xu, Dhanarajagopal Alltrin, Xiaoxuan Ma, Wanting Yang, Wei Zhou, Xiangzhuo Xing, Wen‐Chin Lin, Raman Sankar, Michael Smidman, Shixun Cao, Dong Qian, Renchao Che, Xiaofeng Xu   +15 more
wiley   +1 more source

From Sensing Mechanisms to System Co‐Design: Graphene‐Based Sensors and Readout Circuits

Advanced Science, EarlyView.
This review establishes a unified PS–EQ–RF framework linking graphene sensing mechanisms, native electrical outputs, and output‐specific readout circuits. Voltage‐, current‐, resistance‐, and capacitance‐type sensing systems are systematically classified to guide architecture selection, low‐noise design, system co‐design, and practical integration ...
Jinduo Zhang, Meng Chen, Guanchen Li, Ruifeng Liu, Yingxin Wang, Ziran Zhao   +5 more
wiley   +1 more source

Tunable Switching between Slow and Fast Light in the Graphene Nanodisks (GND)-Quantum Dot (QD) Plasmonic Hybrid Systems. [PDF]

Nanomaterials (Basel), 2023
Almzargah GM, Tohari MM.
europepmc   +1 more source