Researchers Show Continuous-Wave Deep-UV Laser Diode Lasing at Room Temperature
In partnership with Asahi Kasei Corporation, a research team led by 2014 Nobel laureate Hiroshi Amano at Nagoya University’s Institute of Materials and Systems for…
Physics
Optical Cavity
An optical cavity, also known as a resonating cavity or optical resonator, is a mirror or other optical element arrangement that forms a cavity resonator…
Acoustic Impedance
Acoustic impedance and specific acoustic impedance are measures of a system’s resistance to acoustic flow caused by an acoustic pressure applied to the system. The…
Cavity Optomechanics – a Branch of Physics
Cavity optomechanics is a branch of physics that focuses on the interaction between light and mechanical objects on low-energy scales. It is a field of…
Acoustic Contrast Factor
The acoustic contrast factor is a number used to describe the relationship between the densities and the sound velocities (or, equivalently because of the form…
The Beam Quality of a Semiconductor Laser can be Enhanced by a Straightforward Shape Adjustment
Scientists from KAUST have shown how small semiconductor lasers may be easily modified to make them more useful for lighting and holography. The study has…
Radiation Pressure
Radiation pressure (also known as light pressure) is the mechanical pressure exerted on any surface as a result of the object’s momentum exchange with the…
A Device Adopted from Astronomy Aids in the Detection of Unique Quantum Interference Phenomena
Quantum interference refers to the phenomenon in quantum mechanics where the wave nature of particles leads to constructive or destructive interference. It is a fundamental…
Acoustic Levitation
Acoustic levitation is a fascinating phenomenon that involves suspending and manipulating objects in mid-air using sound waves. It is a technique for suspending matter in…
Magnetic Levitation
Magnetic levitation (maglev) or magnetic suspension is a method of suspending an object using only magnetic fields as support. It is a technique for suspending…
Bolt of Understanding for Lightning-Produced X-Rays from Mathematical Model
Scientists noticed a lightning discharge in the early 2000s that produced X-rays with high energy photons similar to those used in medical imaging. Although scientists…
Pulsed Plasma Thruster
A plasma jet engine, also known as a pulsed plasma thruster (PPT), is a type of electric spacecraft propulsion. It is an electric propulsion system…
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