Results 211 to 220 of about 32,708 (285)

Excitonic Landscapes in Monolayer Lateral Heterostructures Revealed by Unsupervised Machine Learning

Advanced Optical Materials, EarlyView.
Hyperspectral photoluminescence data from graded MoxW1 − xS2 alloys and monolayer MoS2–WS2 lateral heterostructures are analyzed using unsupervised machine learning. The combined use of PCA, t‐SNE, and DBSCAN uncovers distinct excitonic regions that trace how composition, strain, and defects modulate optical responses in these 2D materials.
Maninder Kaur, Nicolas T. Sandino, Jason P. Terry, Mahdi Ghafariasl, Yohannes Abate   +4 more
wiley   +1 more source

Moisture dynamics and ageing in clarinet reeds by neutron radiography. [PDF]

PLoS One
Lee J, Zhan Q, Trtik P, Mannes D.
europepmc   +1 more source

Ultra‐Flexible Dual‐Band Organic Photodetectors for Visible and Near‐Infrared Sensing

Advanced Optical Materials, EarlyView.
An ultra‐flexible dual‐band organic photodetector with a total thickness of 5.6 µm for bio‐sensing is developed. It selectively detects visible and near‐infrared light with high sensitivity by switching the voltage. Peripheral oxygen saturation (SpO2) measurement is demonstrated using the device attached to a finger under a single light source by ...
Sachi Awakura, Hiroaki Jinno, Yusaku Tagawa, Ryota Fukuzawa, Masahito Takakuwa, Takao Someya, Tomoyuki Yokota   +6 more
wiley   +1 more source

A high-temperature furnace for multimodal synchrotron-based X-ray microscopy and diffraction imaging. [PDF]

J Synchrotron Radiat
Lesage L, Watier Y, Isern H, Shukla A, Sanna V, Dufrane T, Zhang Y, Detlefs C, Yıldırım C.   +8 more
europepmc   +1 more source

Accelerating Luminescence in Nanostructures: Exploring the Physical Limits and Impact of Ultrafast Emission in Nanoscale Materials

Advanced Photonics Research, EarlyView.
This review highlights recent advances in accelerating luminescence in nanostructures through cooperative emission, resonator coupling, and nonlocal light–matter interactions. By unifying concepts such as excitonic superradiance, superfluorescence, and the plasmonic Purcell effect, it reveals physical limits of ultrafast emission and their potential ...
Masaaki Ashida, Koichi Okamoto, Takuya Matsuda, Hajime Ishihara   +3 more
wiley   +1 more source

Multienergy x-ray imaging enabled by unipolar perovskite detector for intelligent substance identification. [PDF]

Sci Adv
Li Y, Ou X, Liu S, Zhao J, Xue L, Liu C, Zhu B, Yan S, Wang S, Wei Z, Hussain S, Lei W, Gao F, Xu X.   +13 more
europepmc   +1 more source

Computational Analysis of a GST‐Based Long‐Wave Infrared Microring Resonator on a ZnSe Platform as a Photonic Sensor

Advanced Photonics Research, EarlyView.
A Ge2Sb2Te5 (GST)‐based microring resonator is designed and simulated on a ZnSe‐platform that operates in the long‐wave infrared (LWIR) wavelength of 8 μm. The structure demonstrates strong power confinement and high Q‐factor. GST resonator is used for gas and biosensing applications.
Tanzina Rahman, Md. Islahur Rahman Ebon, Amrita Kumar Sana, Jaker Hossain   +3 more
wiley   +1 more source

On-skin, micro-objective enabled camera module for speckle contrast optical spectroscopy/tomography. [PDF]

Biomed Opt Express
Quiroga A, Cortese L, Verma M, Dannberg P, Tachtsidis I, Danz N, Durduran T.   +6 more
europepmc   +1 more source

Vision‐Assisted Avocado Harvesting with Aerial Bimanual Manipulation

Advanced Robotics Research, EarlyView.
This work outlines the design and implementation of a bimanual aerial robot that employs visual perception and learning to detect, reach, and harvest avocados. A new gripper and fixer arm assembly is used to harvest avocados, while visual perception enables the detection of avocados and estimation of their position and orientation for determining ...
Zhichao Liu, Jingzong Zhou, Caio Mucchiani, Konstantinos Karydis   +3 more
wiley   +1 more source

Cherenkov emission in realistic optical body phantoms to study effects of skin tone on imaging delivery technique. [PDF]

Phys Med Biol
Hallett JE, Kulkarni S, Parks A, Crosby J, Glide-Hurst C, Wudtke J, Ware W, Pogue BW.   +7 more
europepmc   +1 more source