Results 101 to 110 of about 1,799,704 (293)

Delineating nonmelanoma skin cancer margins using terahertz and optical imaging

Journal of Biomedical Photonics & Engineering, 2017
We evaluated terahertz reflectance imaging and a combination of terahertz and optical techniques for delineating nonmelanoma skin cancers. After imaging, each terahertz pixel of each specimen was classified as cancerous or normal using a previously ...
Anna N. Yaroslavsky, Cecil Joseph, Rakesh Patel, Alona Muzikansky, Victor A. Neel, Robert H. Giles   +5 more
doaj   +1 more source

Direct Wavefront Measurement of Terahertz Pulses Using Two-Dimensional Electro-Optic Imaging

, 2017
International audienceWe report on the development of a wavefront sensor for terahertz pulses using a direct two-dimensional electro-optic imaging system composed of a ZnTe crystal and a CMOS camera.
Mathias Perrin, Emmanuel Abraham, Jerome Degert, Perrin, Mathias, Cahyadi, Harsono, Harsono Cahyadi, Eric Freysz, Abraham, Emmanuel, Freysz, Eric, Yasui, Takeshi, Degert, Jérôme, Brossard, Mathilde, Mathilde Brossard, Takeshi Yasui   +13 more
core   +1 more source

A scanless method for terahertz time-domain imaging

, 2023
Terahertz (THz) time-domain imaging can uncover the spectral fingerprints of materials, detect changes in both refractive index and absorption, and reveal the inner structure of complex objects through time-of-flight measurements.
Kwon O. -P., Razzari L., Rovere A., Zanotto L., Piccoli R., Morandotti R., Balistreri G.   +6 more
core   +1 more source

Engineering Large‐Grain Metal Halide Perovskite Films via Chemical Vapor Deposition for High‐Performance, Ultralow‐Noise Perovskite Photodetectors

Advanced Science, EarlyView.
Chemical vapor deposition produces large‐grain, phase‐pure CsPbBr3 films (grains up to 35 µm) with Drude‐like terahertz photoconductivity and twofold higher carrier mobility versus spin‐coated references. These microstructural advances translate into photodetectors with a detectivity of 8.4 × 1012 Jones, dark current below 1 pA cm−2, X‐ray sensitivity ...
Roel Vanden Brande, Sudipta Seth, Lei Gao, Bapi Pradhan, Dilkhush Khicher, Anastasiia Bazylevska, Wei Qu, Christian Sternemann, Hai Wang, Steven De Feyter, Weidong Xu, Fei Zhang, Mischa Bonn, Johan Hofkens, Elke Debroye   +14 more
wiley   +1 more source

Suppression of the fluctuation effect in terahertz imaging using homomorphic filtering

, 2013
To suppress the fluctuation effect due to laser power instability and terahertz radiation fluctuation, a homomorphic filtering method is proposed to process the terahertz images obtained from a pulsed terahertz raster scanning imaging system.
Xu, Limin, Fan, Wenhui, Liu, Jia
core   +1 more source

Electronic Chip‐Mimetic Medical Implants for Controllable Sonothermal Treatments

Advanced Science, EarlyView.
Inspired by the thermal effect of working electronic chips, which consist of various heterostructures, an sonothermal‐responsive platform has been developed through constructing metal‐semiconductor interface on implants. Biofilm infection and deep vein thrombosis can be successfully treated by controllable ultrasound treatments.
Zhengdong Zhang, Pan Liu, Jie Lei, Shuchang Peng, Qiu Chen, Wei Guan, Yizhou Zhu, Gang Liu, Xiaobo Feng, Cao Yang, Lei Tan   +10 more
wiley   +1 more source

Transparent Topological Meta‐Diplexer via Tightly Confined Valley Surface States

Advanced Science, EarlyView.
An optically transparent topological metasurface supporting tightly confined valley surface states enables robust and flexible wave routing in an ultrathin platform. A compact transparent meta‐diplexer with spatially and spectrally separated channels is realized, while communication experiments verify high‐fidelity signal transmission, opening new ...
Sijie Li, Ping Li, Zhihao Lan, Yin Li, Hang Wong, Menglin L.N. Chen   +5 more
wiley   +1 more source

Spectral characterization and vibrational mode study of cocrystal of acetaminophen and aspirin based on terahertz/Raman spectroscopy combined with DFT theory calculation

Results in Chemistry
In recent years, pharmaceutical cocrystal has become a hot field in drug development, which improves the solubility, stability, and bioavailability of drugs.
Haofei Sun, Bo Peng, Xinyi Bai, Bo Su, Cunlin Zhang, Hailin Cui, Shengbo Zhang, Kai Li   +7 more
doaj   +1 more source

Advances in Se Wide‐Bandgap Photovoltaics and TexSe1‐x SWIR Photodiodes

Advanced Science, EarlyView.
In this review, fundamental properties and current challenges in Se photovoltaics (PVs) for tandem and indoor PVs and TexSe1‐x alloys for short wave infrared photodiodes are discussed. A case is made for the practicality of elemental chalcogenide optoelectronics, and a pathway toward resolving the key challenges in these respective technologies is ...
Adam D. Alfieri, Deep Jariwala
wiley   +1 more source

Correction: Frequency selective fingerprint sensor: the Terahertz unity platform for broadband chiral enantiomers multiplexed signals and narrowband molecular AIT enhancement

PhotoniX, 2023
Jiaming Lyu, Shengyuan Shen, Lin Chen, Yiming Zhu, Songlin Zhuang   +4 more
doaj   +1 more source