Results 11 to 20 of about 15,221 (204)

Synthetic Chromatophores for Color and Pattern Morphing Skins. [PDF]

Adv Mater
Cephalopods use chromatophore organs (muscle‐actuated pigment sacs) to alter their skin color and pattern. Synthetic chromatophores, which closely mimic the mechano‐optical process found in cephalopods using stimuli‐responsive microscale hydrogel actuators, are reported.
Watts BP, Jamison MR, Kapitan JM, Huang N, Taylor D, Morin SA.   +5 more
europepmc   +2 more sources

Single Photon Kilohertz Frame Rate Imaging of Neural Activity. [PDF]

Adv Sci (Weinh), 2022
The high temporal precision of single photon avalanche diodes (SPADs) is leveraged to record neural activity reported by genetically encoded voltage indicators. Subthreshold and spiking activity of single neurons is resolved with shot noise limited signals at frame rates of up to 10 kHz.
Tian T, Yuan Y, Mitra S, Gyongy I, Nolan MF.   +4 more
europepmc   +2 more sources

Photografting of Surface-assembled Hydrogel Prepolymers to Elastomeric Substrates for Production of Stimuli-Responsive Microlens Arrays. [PDF]

Adv Funct Mater
Surface functionalization enables assembly and covalent attachment of stimuli‐responsive “microgels” to a substrate through wettability interactions and direct polymerization, respectively. This process enables the scalable fabrication of fixed microgel arrays, with dynamic optofluidic microlensing functionality and future applications in soft robotics
Kapitan JM, Minnick G, Watts BP, Huang N, Rose MA, Yang R, Morin SA.   +6 more
europepmc   +2 more sources

Magnetic Manipulation of Superparamagnetic Colloids in Droplet‐Based Optical Devices

Advanced Optical Materials, Volume 11, Issue 21, November 6, 2023., 2023
Colloidal particles inside droplets are assembled and manipulated using an external magnetic field to create magnetically controlled active microlenses and optical shutters. Using monodisperse microfluidic droplets, the assembly of particles into 2D clusters is systematically investigated and exploited to manipulate light.
Iacopo Mattich, Joan Sendra, Henning Galinski, Golnaz Isapour, Ahmet F. Demirörs, Marco Lattuada, Simone Schuerle, André R. Studart   +7 more
wiley   +1 more source

Ultra wide‐field infrared astronomy in Antarctica

Astronomische Nachrichten, Volume 344, Issue 8-9, October-November 2023., 2023
The science enabled by the deep and high‐cadence survey that will be performed by the Vera Rubin Observatory has led to an increase of survey and follow‐up capabilities around the world. The infrared, has however, not match this growth due to the challenges caused by the atmospheric and the cost of large detector arrays.
Tony Travouillon, Roger M. Smith, Jason Fucik, Don F. Figer, Mansi Kasliwal, Anna M. Moore, Tristan Guillot   +6 more
wiley   +1 more source

Characteristic Features of Gravitational Wave Lensing as Probe of Lens Mass Model

Annalen der Physik, Volume 535, Issue 6, June 2023., 2023
The gravitational lensing of gravitational waves is an expanding field in astronomy and cosmology. It might contribute to solving many different issue in these fields. To exploit its potential, first of all, one needs to recognize and model a gravitational wave event properly.
Paolo Cremonese, David Fonseca Mota, Vincenzo Salzano   +2 more
wiley   +1 more source

Self‐Aligning Metallic Vertical Interconnect Access Formation through Microlensing Gas Phase Electrodeposition controlling Airgap and Morphology

Advanced Electronic Materials, Volume 9, Issue 1, January 2023., 2023
The manufacture of vertical interconnects (via) in middle of line processing has moved more into focus in recent years. It has become apparent that platinum metals such as ruthenium or rhodium have very good electrical properties for sub‐10 nm technologies. This paper presents self‐aligning via formation through microlensing gas phase electrodeposition
Leslie Schlag, Nishchay A. Isaac, Mohammad M. Hossain, Anna‐Lena Hess, Benedikt C. Wolz, Johannes Reiprich, Mario Ziegler, Jörg Pezoldt, Heiko O. Jacobs   +8 more
wiley   +1 more source

Self‐Aligning Metallic Vertical Interconnect Access Formation through Microlensing Gas Phase Electrodeposition controlling Airgap and Morphology (Adv. Electron. Mater. 1/2023)

Advanced Electronic Materials, Volume 9, Issue 1, January 2023., 2023
Vertical Interconnects In article number 2200838, Heiko O. Jacobs and co‐workers demonstrate how gas ions and metal particles leave a spark discharge generator in a plasma jet to deposit on a chip in a self‐aligning manner. The charge gas ions float the insulating resist on top of an oxide/metallization stack to guide the metal nanoparticles with a ...
Leslie Schlag, Nishchay A. Isaac, Mohammad M. Hossain, Anna‐Lena Hess, Benedikt C. Wolz, Johannes Reiprich, Mario Ziegler, Jörg Pezoldt, Heiko O. Jacobs   +8 more
wiley   +1 more source

The road toward imaging a black hole: A personal perspective

Natural Sciences, Volume 2, Issue 4, October 2022., 2022
The article describes the authors personal journey towards developig the Event Horizon Telescope and the first image of a black hole. Left: predcition made by the author and collaborators proposing the black hole imaging in 2000. Right: the two images observed and published by the Event Horizon Telescope in 2019 and 2022.
Heino Falcke
wiley   +1 more source

Pixel lensing: Microlensing towards M31 [PDF]

, 2009
Pixel lensing is gravitational microlensing of unresolved stars. The main target explored up to now has been the nearby galaxy of Andromeda, M31. The scientific issues of interest are the search for dark matter in form of compact halo objects, the study ...
Microlensing Towards M, S. Calchi Novati
core   +2 more sources