A new Stanford-designed optical amplifier uses energy recycling in a resonator to deliver strong, low-noise amplification with far less power.

CU Boulder researchers have designed microscopic “racetracks” that trap and amplify light with exceptional efficiency. By using smooth curves inspired by highway engineering, they reduced energy loss ...

New York, NY — Researchers at AppliedPhysics.org have published an exploratory study in Biosystems examining whether mathematical acoustic signal structure can influence cellular response independent ...

Learn how to determine the observed intensity of a supernova using core physics ideas like luminosity, distance, and the inverse-square law. This video walks through the reasoning and calculations ...

A tailored low-intensity noise stimulus alleviated tinnitus symptoms in a Phase II trial, demonstrating promise for a non-masking, precision-based sound therapy that quiets the brain’s internal noise.

In recent years, the continuous increase in the speed of high-speed trains has led to growing concern about noise generated by train operations. Currently, three types of sound barriers are commonly ...

What are the loudest sounds at UB? Where are the university’s quietest spots? What unlikely noises here are around 60 decibels, the level typically associated with a normal conversation between two ...

The film "LearningAboutSound" explores the science of sound, detailing how vibrations create sound waves that travel through different mediums like air, water, and solids. It explains key concepts ...