Results 111 to 120 of about 14,546 (292)

Advanced integrated spectrometer designs for miniaturized optical coherence tomography systems [PDF]

, 2013
Optical coherence tomography (OCT) has enabled clinical applications that revolutionized in vivo medical diagnostics. Nevertheless, its current limitations owing to cost, size, complexity, and the need for accurate alignment must be overcome by radically
Povazay, B., Pollnau, Markus, L. Chang, de Ridder, R.M., Chang, Lantian, Worhoff, Kerstin, B. I. Akca, A. Alex, Alex, A., Akça, B.I., M. Pollnau, K. Wörhoff, W. Drexler, Drexler, W., B. Považay, Chang, Lantian; id_orcid, R. M. de Ridder   +16 more
core   +1 more source

Metasurface spectrometers beyond resolution-sensitivity constraints. [PDF]

Conventional spectrometer designs necessitate a compromise between their resolution and sensitivity, especially as device and detector dimensions are scaled down.
Ye, Xin, Chen, Hongsheng, Zheng, Wanguo, Albrow-Owen, Tom, Luo, Jikui, Shi, Yaqi, Wu, Jingjun, Liu, Shuangli, Guo, Xuhan, Yang, Liming, Joyce, Hannah J., Chen, Fujia, Sun, Zhipei, Zou, Lan, Chen, Jun, Che, Lufeng, Yang, Yihao, Yang, Zongyin, Ju, Bingfeng, Sun, Yijun, Dong, Shurong, Cui, Hanxiao, Tang, Feng, Li, Bo, Hasan, Tawfique, Huang, Jing, Munro, Eric A.   +26 more
core   +4 more sources

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

Advanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen, Haosen Miao, Weiying Hong, Matteo Palma   +3 more
wiley   +1 more source

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

Advanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero, Meghna Jha, Elsa Veronica Flores‐Vela, Joost Kimpel, Andreas Schaefer, Jiali Guo, Jesika Asatryan, Alberto Peinador Veiga, Shuichi Haraguchi, Per‐Anders Carlsson, Jaime Martín, Mariano Campoy‐Quiles, Christian Müller   +12 more
wiley   +1 more source

Performance limit of on-chip speckle spectrometers [PDF]

Disorder-driven, integrated speckle spectrometers offer exceptional spectral resolution within a compact design. They benefit from enhanced optical path lengths due to multiple light scattering events, however, often at the cost of low optical throughput.
Schulz, Sebastian A., Negro, Luca Dal, Bruce, Graham D., Kumar, Bhupesh   +3 more
core  

Conception and State of the Radiometric Analysis Breadboard (RAB) for the Mercury Radiometer and Thermal Infrared Spectrometer (MERTIS) [PDF]

, 2006
As a part of the ESA deep space mission to mercury - BepiColombo - investigations of mercury´s surface layer using a push-broom thermal infrared imaging spectrometer (MERTIS) with a high spectral resolution is planned.
T. Saeuberlich, E. Lorenz, W. Skrbek, Säuberlich, Thomas, Skrbek, Wolfgang, Lorenz, Eckehard   +5 more
core  

Monolithic thin-film lithium niobate broadband spectrometer with one nanometre resolution

Nature Communications
Miniaturised optical spectrometers are attractive due to their small footprint, low weight, robustness and stability even in harsh environments such as space or industrial facilities.
Giovanni Finco, Gaoyuan Li, David Pohl, Marc Reig Escalé, Andreas Maeder, Fabian Kaufmann, Rachel Grange   +6 more
doaj   +1 more source

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

Advanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou, Bokeon Kwak, Dario Floreano, Esther Amstad   +3 more
wiley   +1 more source

Comparability of three spectrometers for monitoring urban aerosol [PDF]

, 2001
The comparability was tested of three aerosol ``spectrometers{''}, used in a program for monitoring the spectra of fine and ultrafine particles in three European cities.
Khlystov, A
core  

Intermediate Resistive State in Wafer‐Scale Vertical MoS2 Memristors Through Lateral Silver Filament Growth for Artificial Synapse Applications

Advanced Functional Materials, EarlyView.
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa, Milan Buttberg, Ke Ran, Rana Walied Ahmad, Dennis Braun, Lukas Völkel, Jimin Lee, Sofía Cruces, Bart Macco, Bárbara Canto, Holger Lerch, Thorsten Wahlbrink, Holger Kalisch, Michael Heuken, Andrei Vescan, Joachim Mayer, Zhenxing Wang, Ilia Valov, Stephan Menzel, Max C. Lemme   +19 more
wiley   +1 more source