Results 71 to 80 of about 13,148 (240)

Light‐Mediated Photomultiplication via Cascade Energy Transfer in Organic Photodiode

Advanced Functional Materials, EarlyView.
Light‐mediated photomultiplication via cascade energy transfer in organic photodiode demonstrates external quantum efficiency exceeding 200% and specific detectivity surpassing 5.0 × 1013 Jones. This advancement effectively addresses the limitation of elevated dark current density characteristic of prior photomultiplication organic photodetectors ...
Gae Hwang Lee, Jae‐Hyun Kim, Hyunbum Kang, Jaebin Jeong, Jong Won Chung, Dongwook Kim, Jaehoon Park, Youngjun Yun, Sungjun Park   +8 more
wiley   +1 more source

Multi‐Pathway Upconversion Emission in Symmetry‐Broken Nanocavities: Broadband Multiresonant Enhancement and Anti‐Correlated Interfacial Sensitivity

Advanced Functional Materials, EarlyView.
Symmetry‐broken plasmonic nanoantenna arrays achieve broadband multiresonant enhancement of second harmonic generation (SHG), third harmonic generation (THG), and upconversion photoluminescence (UCPL), under femtosecond laser excitation across the near‐infrared range (1000–1600 nm).
Elieser Mejia, Yuming Zhao, Meitong Nie, Benjamin Pittelkau, Aditya Garg, Junyeob Song, Wenqi Zhu, Henri Lezec, Amit Agrawal, Wei Zhou   +9 more
wiley   +1 more source

Predicting the Response of Patients Treated with 177Lu-DOTATATE Using Single-photon Emission Computed Tomography-Computed Tomography Image-based Radiomics and Clinical Features

Journal of Medical Signals and Sensors
Background: In this study, we want to evaluate the response to Lutetium-177 (177Lu)-DOTATATE treatment in patients with neuroendocrine tumors (NETs) using single-photon emission computed tomography (SPECT) and computed tomography (CT), based on image ...
Baharak Behmanesh, Akbar Abdi-Saray, Mohammad Reza Deevband, Mahasti Amoui, Hamid R. Haghighatkhah, Ahmad Shalbaf   +5 more
doaj   +1 more source

MONOSTOTIC OSTEOFIBROUS DYSPLASIA OF THE TIBIA

Journal of Cancer and Allied Specialties, 2016
An 11-year-old boy presented with painful swelling of leg following fracture of tibia. Osteo brous dysplasia (OFD) is an uncommon, benign, non-hereditary bone disorder in which brous tissue develops in place of normal bone that affects the young adults ...
Maimoona Siddique, Humayun Bashir, Imran K Niazi, Ahsan Shamim   +3 more
doaj   +1 more source

Quantum Tomography Via Group Theory [PDF]

arXiv, 2000
Amongst the multitude of state reconstruction techniques, the so-called "quantum tomography" seems to be the most fruitful. In this letter, I will start by developing the mathematical apparatus of quantum tomography and, later, I will explain how it can be applied to various quantum systems.
arxiv  

A Homeostatic Photonic Device Integrating Vapor‐Regulated Thermo‐Optical Feedback Mechanisms

Advanced Functional Materials, EarlyView.
An inorganic homeostatic photonic device is designed to autonomously regulate light, temperature, and vapor sorption through integrated positive and negative feedback mechanisms at multiple wavelengths. The device uses a graded mesoporous 1D photonic crystal coupled with a photothermal layer.
Caroline Byun, Davide R. Ceratti, Clémence Mimoso, Cédric Boissière, Marco Faustini   +4 more
wiley   +1 more source

Myocardial perfusion scintigraphy in the diagnostics of takotsubo syndrome

Российский кардиологический журнал, 2018
We analyzed the publications about single-photon emission computed tomography in the diagnostics of takotsubo syndrome; the dynamics of testing data are presented on a clinical example.
A. I. Abdrakhmanova, G. B. Saifullina, N. B. Amirov   +2 more
doaj   +1 more source

Efficiency of quantum state tomography for qubits [PDF]

arXiv, 2010
The efficiency of quantum state tomography is discussed from the point of view of quantum parameter estimation theory, in which the trace of the weighted covariance is to be minimized. It is shown that tomography is optimal only when a special weight is adopted.
arxiv  

Tailoring Hole‐Blocking Layers Enables a Versatile Approach for Fast Photomultiplication‐Type Organic Photodetectors

Advanced Functional Materials, EarlyView.
This study investigates the role of hole‐blocking layers (HBLs), particularly the combination of two HBLs in photomultiplication‐type organic photodetectors (PM‐OPDs), which results in high gain and record‐fast response. The proposed HBL strategy also allows for the use of photoactive layer with balanced donor–acceptor stoichiometry, which can be ...
Awais Sarwar, Yazhong Wang, Louis Conrad Winkler, Tianyi Zhang, Jonas Schröder, Donato Spoltore, Karl Leo, Johannes Benduhn   +7 more
wiley   +1 more source

Numerical Solution of the Tomography Problem in Domains with Obstacles [PDF]

arXiv, 2011
We study numerical methods of tomography in domains with a reflecting obstacle. It will be shown that tomography with sets containing both broken rays, i.e. rays reflecting at the obstacle, as well as unbroken rays, has a smaller error between the original and reconstructed image compared to classical tomography methods.
arxiv