Coordinated optical and radar observations of ionospheric pumping for a frequency pass through the second electron gyroharmonic at HAARP [PDF]
, 2007 On 4 February 2005, the High-frequency Active Auroral Research Program (HAARP) facility was operated in O and X mode while pointing into the magnetic zenith to produce artificial optical emissions in the ionospheric F layer. The pump frequency was set to
Senior, Andrew +7 more
core +4 more sources
Operation of an optical in-well-pumped vertical-external-cavity surface-emitting laser [PDF]
, 2006 We report the operation of an optical in-well-pumped vertical-external-cavity surface-emitting laser. The laser delivers 1 W at 855 nm and is pumped with a cost-effective fiber-coupled laser diode emitting at 806 nm.
Ferguson, Allister I. +5 more
core +4 more sources
Optically pumped magnetoencephalography in epilepsy [PDF]
Annals of Clinical and Translational Neurology, 2019 Abstract We demonstrate the first use of Optically Pumped Magnetoencephalography (OP‐MEG) in an epilepsy patient with unrestricted head movement. Current clinical MEG uses a traditional SQUID system, where sensors are cryogenically cooled and housed in a helmet in which the patient’s head is fixed.
Umesh Vivekananda +12 more
openaire +4 more sources
Previously unreported optical emissions generated during ionospheric heating [PDF]
, 2008 Several radio-induced optical emissions were generated during an ionospheric heating experiment performed at the High Power Auroral Stimulation (HIPAS) facility near Two Rivers, Alaska.
Gustavsson, B. +5 more
core +4 more sources
Voltage dependence of proton pumping by bacteriorhodopsin mutants with altered lifetime of the m intermediate [PDF]
, 2013 The light-driven proton pump bacteriorhodopsin (BR) from Halobacterium salinarum is tightly regulated by the [H+] gradient and transmembrane potential.
Friedrich, Thomas +7 more
core +2 more sources
PhotoniX, 2023 In this work, on-chip three-dimensional (3D) photonic integrated optical sources based on active fluorescent polymer waveguide microdisks are proposed for light display application.
Chunxue Wang +7 more
doaj +1 more source
ICTACT Journal on Communication Technology, 2021 Optical network systems with prolonged reach are required to cater the long distance located optical network units (subscribers). In this work, a DP-128 QAM based system is proposed with Optical Back Propagation (OBP) to cope up with nonlinear ...
Kamalpreetkaur, Baljeet Kaur
doaj
Broadband Backhaul Communication for Stratospheric Platforms: The Stratospheric Optical Payload Experiment (STROPEX) [PDF]
, 2006 A high bitrate optical downlink was performed by the stratospheric optical payload experiment (STROPEX), a part of the EU CAPANINA project. The STROPEX objectives were to design and build the necessary hardware to demonstrate an optical backhaul downlink
Knapek, Markus +9 more
core +1 more source
Spin pumping in ferromagnet-topological insulator-ferromagnetheterostructures [PDF]
, 2015 Topological insulators (TIs) are enticing prospects for the future of spintronics due to their large spin-orbit coupling and dissipationless, counter-propagating conduction channels in the surface state.
Baker, A. A. +8 more
core +1 more source
Effect of Axial Agitator Configuration (Up-Pumping, Down-Pumping, Reverse Rotation) on Flow Patterns Generated in Stirred Vessels [PDF]
, 2001 Single phase turbulent flow in a tank stirred with two different axial impellers - a pitched blade turbine (PBT) and a Mixel TT (MTT)- has been studied using Laser Doppler Velocimetry. The effect of the agitator configuration, i.e.
Fletcher, David F. +4 more
core +1 more source