Historically, contact electrification (CE) was humanity's first and only source of electricity up until around the 18th century, yet its true nature is still elusive. Today it is considered a core component of technologies ...
General Physics
Oct 6, 2022
3
124
Whether in photosynthesis or in a photovoltaic system: if you want to use light efficiently, you have to absorb it as completely as possible. However, this is difficult if the absorption is to take place in a thin layer of ...
Optics & Photonics
Aug 25, 2022
8
1743
Lawrence Livermore National Laboratory (LLNL) researchers have designed a compact multi-petawatt laser that uses plasma transmission gratings to overcome the power limitations of conventional solid-state optical gratings. ...
Optics & Photonics
Aug 19, 2022
0
682
A novel, quantum-based vacuum gauge system invented by researchers at the National Institute of Standards and Technology (NIST) has passed its first test to be a true primary standard—that is, intrinsically accurate without ...
General Physics
Jul 15, 2022
2
598
By mimicking features of living systems, self-organizing lasers could lead to new materials for sensing, computing, light sources and displays.
Optics & Photonics
Jul 13, 2022
1
782
Nonlinear optics is an important research direction with various applications in laser manufacturing, nanostructures' fabrication, sensor design, optoelectronics, biophotonics, and quantum optics, etc. Nonlinear optical materials ...
Optics & Photonics
May 31, 2022
0
10
Entanglement or non-separability constitutes a cornerstone of quantum mechanics from which many of its unique characteristics arise. For example, non-separability in entangled particle pairs leads to apparent instantaneous ...
Optics & Photonics
May 6, 2022
0
401
Stable packets of light waves—called optical solitons—are emitted in ultrashort-pulse lasers as a chain of light flashes. These solitons often combine into pairs with very short temporal separation. Introducing atomic ...
Optics & Photonics
Apr 22, 2022
0
711
The ground-based laser system homed in on the red drone flying by, shooting a high-energy beam invisible to the naked eye. Suddenly, a fiery orange glow flared on the drone, smoke poured from its engine and a parachute opened ...
Optics & Photonics
Apr 14, 2022
1
33
For all the recent advances in integrated lithium niobate photonic circuits—from frequency combs to frequency converters and modulators—one big component has remained frustratingly difficult to integrate: lasers.
Optics & Photonics
Apr 8, 2022
0
983
