Search results for vertical cavity

Earth Sciences Apr 22, 2024

Feedback loop that is melting ice shelves in West Antarctica revealed

New research has uncovered a feedback loop that may be accelerating the melting of the floating portions of the West Antarctic Ice Sheet, pushing up global sea levels.

Optics & Photonics Apr 4, 2024

Surface emitting semiconductor laser achieves efficiency breakthrough

Since its inception, the power conversion efficiency (PCE) of edge-emitting laser (EEL) technology has been continuously breaking records, achieving a historically high efficiency of 85% at -50°C in 2006. Following this, ...

Optics & Photonics Apr 3, 2024

Reimagining quantum dot single-photon sources: A breakthrough in monolithic Fabry-Perot microcavities

Self-assembled semiconductor quantum dots (QDs) represent a three-dimensional confined nanostructure with discrete energy levels, which are similar to atoms. They are capable of producing highly efficient and indistinguishable ...

Plants & Animals Mar 13, 2024

Wood condition, root constriction and improper pruning can be used as predictors of urban tree failure

In São Paulo, Brazil's largest metropolis, the city center is considered a tree failure hotspot, with the largest proportion of failures in the city occurring in that area.

Plants & Animals Feb 26, 2024

Study provides rare glimpse of the ringtail, an important but poorly understood predator

Secretive species can pose special conservation challenges simply because they are so skilled at staying under the radar that researchers have uncovered comparatively little about their basic needs.

Optics & Photonics Feb 23, 2024

Researchers develop a computer from an array of VCSELs with optical feedback

In our data-driven era, solving complex problems efficiently is crucial. However, traditional computers often struggle with this task when dealing with a large number of interacting variables, leading to inefficiencies such ...

Plants & Animals Jan 23, 2024

Study offers rare long-term analysis of techniques for creating standing dead trees for wildlife habitat

Ecologists have long known that standing dead trees, commonly referred to as snags, are an important habitat element for forest dwellers and act as a driver of biodiversity.

Space Exploration Jan 17, 2024

Space travel taxes astronauts' brains. But microbes on the menu could help in unexpected ways

Feeding astronauts on a long mission to Mars goes well beyond ensuring they have enough nutrients and calories to survive their multi-year journey.

Quantum Physics Jan 15, 2024

The tale of two clocks: Advancing the precision of timekeeping

Historically, JILA (a joint institute established by the National Institute of Standards and Technology [NIST] and the University of Colorado Boulder) has been a world leader in precision timekeeping using optical atomic ...

Earth Sciences Oct 27, 2023

Underwater robot finds new circulation pattern in Antarctic ice shelf

More than merely cracks in the ice, crevasses play an important role in circulating seawater beneath Antarctic ice shelves, potentially influencing their stability, finds Cornell University-led research based on a first-of-its-kind ...

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