Results 101 to 110 of about 2,332,742 (352)

Enhanced THz Circular-Polarization Detection in Miniaturized Chips with Chiral Antennas

Photonics
Recent advancements in terahertz (THz) wave technology have highlighted the criticality of circular-polarization detection, fostering the development of more compact, efficient on-chip THz circular-polarization detectors.
Fangzhe Li, Jing Zhou, Jie Deng, Jinyong Shen, Tianyun Zhu, Wenji Jing, Xu Dai, Jiexian Ye, Yujie Zhang, Junwei Huang, Xiaoshuang Chen   +10 more
doaj   +1 more source

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

Advanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song, Stefan Rettinger, Chengzhang Xu, Ulrich Mansfeld, Markus Retsch   +4 more
wiley   +1 more source

HMCNet: A Hybrid Mamba–CNN UNet for Infrared Small Target Detection

Remote Sensing
Using infrared technology to accurately detect small weak targets is crucial in various fields, such as reconnaissance and security. However, the infrared detection of small weak targets is challenged by complex backgrounds, tiny target sizes, and low ...
Bolin Li, Peng Rao, Yueqi Su, Xin Chen
doaj   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

INFRARED IMAGING DEVICES IN INFRARED MEDICAL RADIOGRAPHY [PDF]

Annals of the New York Academy of Sciences, 1964
The word “thermograph” often used to describe both an instrument and the product of that instrument has as its roots the Greek words thermos and gruphos. The latter means a sketch or pictorial representation; thus, the graphic arts, scientific graphs, photographs, etc. The former relates to heat or temperature.
openaire   +3 more sources

Inexpensive infrared source improvised from flashlight [PDF]

, 1966
Inexpensive hand-held source of infrared energy is provided by a flashlight bulb coated with a paint which filters out the visible light emitted by the bulb and transmits only infrared radiation.

core   +1 more source

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source

Multi-dimensional optical information acquisition based on a misaligned unipolar barrier photodetector

Nature Communications
Acquiring multi-dimensional optical information, such as intensity, spectrum, polarization, and phase, can significantly enhance the performance of photodetectors.
Shukui Zhang, Hanxue Jiao, Yan Chen, Ruotong Yin, Xinning Huang, Qianru Zhao, Chong Tan, Shenyang Huang, Hugen Yan, Tie Lin, Hong Shen, Jun Ge, Xiangjian Meng, Weida Hu, Ning Dai, Xudong Wang, Junhao Chu, Jianlu Wang   +17 more
doaj   +1 more source

Infrared Astronomy: More Than Our Eyes Can See Lithograph [PDF]

, 2000
This lithograph uses images of the Orion constellation to illustrate how a common astronomical object appears in both visible light and in the infrared. The back of the lithograph tells the history of infrared light and explains the benefits of infrared ...

core  

First Detection of Near-Infrared Intraday Variations in the Seyfert 1 Nucleus NGC4395

, 2006
We carried out a one-night optical V and near-infrared JHK monitoring observation of the least luminous Seyfert 1 galaxy, NGC4395, on 2004 May 1, and detected for the first time the intraday flux variations in the J and H bands, while such variation was ...
Hiroyuki Tomita, Keigo Enya, Kishimoto M., Masahiro Suganuma, Masahiro Yamauchi, Shakura N. I., Shintaro Koshida, Takeo Minezaki, Tsutomu Aoki, Winkler H., Winkler H., Yukiyasu Kobayashi, Yuzuru Yoshii   +12 more
core   +1 more source