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George Washington University


Breaking the power and speed limit of lasers

A novel vertical-cavity surface-emitting laser design has been developed, combining multiple transverse coupled cavities to enhance optical feedback. This innovation extends the temporal bandwidth of VCSELs, enabling a modulation bandwidth of up to 100 GHz, beyond the known limit of relaxation oscillation frequency.

SourceGeorge Washington University·JournalNanophotonics·DateNov 19, 2020

Changing landscapes, changing diets

Researchers analyzed fossilized teeth of ancient herbivores to reveal dietary shifts from woody vegetation to grasses and sedges, around 2.7-2 million years ago. The findings suggest that behavioral dietary changes can precede apparent morphological adaptations in hominins.

SourceGeorge Washington University·JournalProceedings of the National Academy of Sciences·DateAug 25, 2020

Breaking down wood decomposition by fungi

Researchers develop a trait-based understanding of fungal decomposition abilities, improving predictive power for early and mid-stage wood decay. The study identifies different fungal traits that explain wood decomposition variation, with great potential to improve carbon cycle predictions in forests.

SourceGeorge Washington University·JournalProceedings of the National Academy of Sciences·DateMay 11, 2020

Processed foods highly correlated with obesity epidemic in the US

A review article published by George Washington University researcher Leigh A. Frame found a strong correlation between processed food consumption and the rising obesity epidemic in the US. The study suggests that limiting ultra-processed foods and increasing whole grain, fruit, and vegetable intake can help combat weight gain.

SourceGeorge Washington University·JournalCurrent Treatment Options in Gastroenterology·DateJan 6, 2020