Laser-based device can scan almost any sample of gas and tell you what's in it
Expert sommeliers can take a whiff of a glass of wine and tell you a lot about what's in your pinot noir or cabernet ...
Scientists Amplify the Universe’s Faintest Signals 1,000x to Reveal Dark Matter
Scientists have developed a groundbreaking atom interferometer capable of amplifying faint signals by 1,000 times — making it ...
The New York Times2d
The Learning Network
Do you hike in the mountains, swim in the ocean, watch the sunset or listen to birds? Do you wish the outdoors were easier to access where you live? By Natalie Proulx What is it like to report ...
AZoOptics3d
How Does a Semiconductor Laser Work?
3 Their electrical properties can be adjusted to either enhance or restrict electron flow, making them essential in electronic and laser applications. Their conductivity falls between that of ...
IEEE4d
Fast-response Temperature Sensing Using Dual-wavelength Differential Cross Multiplication for Interrogating Fiber-optic Fabry-Pérot Interferometers
The system employs a silicon cavity-based Fabry-Pérot interferometer (FPI) as the temperature sensing ... A theoretical analysis was conducted to optimize the selection of two laser wavelengths used ...
IEEE5d
Performance Simulation of SmallSat SAR Persistent Scatterer Interferometry With Deteriorated Images
Abstract: The performance tradeoffs required for a small satellite synthetic aperture radar (SAR) system designed to measure surface deformations using persistent scatterer interferometry (PSI) are ...
C&EN6d
Two-Dimensional Spectroscopy of Open Quantum Systems: Nonequilibrium Green’s Function Formulation
Department of Chemistry & Biochemistry, University of California San Diego, La Jolla, California 92093, United States ...