Measuring the refractive index and the thickness of thin films (films with a thickness from less than a nanometer to several microns) is essential to characterize them and improve the performance of sensors and devices that ...
Optics & Photonics
Sep 15, 2023
0
28
The provenance of oxygen (O2) has been linked to the early Earth's atmospheric and biological evolution. A permanent rise to appreciable concentrations of O2 in the atmosphere, known as the "Great Oxidation Event (GOE)," ...
Earth Sciences
Aug 30, 2023
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1
The Bessel beam, with a significant depth of field and self-healing characteristics, has been applied in widespread applications, including quantum entanglement, underwater 3D imaging, optical micro-manipulation, microscope, ...
Optics & Photonics
Aug 17, 2023
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7
Films made of aluminum-plastic laminates (APL) have long been used extensively to extend the shelf life of chips, roasted and powdered coffee, milk, fruit juices and other foods. During the COVID-19 pandemic, they were used ...
Polymers
Aug 10, 2023
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17
Squeezing light beyond the diffraction limit and controlling the optical processes caused by nano-confined light are central issues of nanophotonics. In particular, localized and enhanced light at the plasmonic nanogaps in ...
Nanophysics
Jul 31, 2023
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1
Lasers with ultra-low threshold and compact size are highly desirable components in photonic integrated circuits, aiming at the application of optical communications, chip-scale solid-state LIDAR and quantum information. ...
Optics & Photonics
Jul 7, 2023
0
19
For more than a decade, astronomers have been trying to get a closer look at GJ 1214b, an exoplanet 40 light-years away from Earth. Their biggest obstacle is a thick layer of haze that blankets the planet, shielding it from ...
Astronomy
May 10, 2023
0
295
Re-analysis of data from NASA's Voyager spacecraft, along with new computer modeling, has led NASA scientists to conclude that four of Uranus' largest moons likely contain an ocean layer between their cores and icy crusts. ...
Astronomy
May 4, 2023
0
457
Last week, NASA shared a blog post saying they detected a sensor glitch associated with the James Webb Space Telescope's Mid-Infrared Instrument (MIRI). For some reason, the sensor for MIRI's Medium Resolution Spectroscopy ...
Astronomy
May 1, 2023
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21
Energy efficient LEDs (light emitting diodes) have begun to replace many types of lighting both indoor and outdoor. A key reason for the rise of LEDs has been materials research that greatly improved the quality and intensity ...
Nanophysics
Apr 27, 2023
0
11
