Matching particles and antiparticles are small units of matter that have the same mass but opposite electric charges. Typically, these units of matter with opposite electric charge tend to annihilate one another.
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
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711
Like a vocal coach who extends the octave range of an opera singer, researchers at the National Institute of Standards and Technology (NIST) have expanded by nearly two-thirds the frequency range over which a chip-scale device ...
Optics & Photonics
Feb 23, 2022
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77
Unlike the jumble of frequencies produced by the light that surrounds us in daily life, each frequency of light in a specialized light source known as a "soliton" frequency comb oscillates in unison, generating solitary pulses ...
Optics & Photonics
Dec 16, 2021
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684
Ultrashort flashes of light lasting less than a quadrillionth of a second are fast growing in technological importance. In laser sources, pairs and groups of light flashes can be created instead of individual flashes. Similar ...
Optics & Photonics
Nov 01, 2021
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2094
Optical solitons are nonlinear optical wave-packets that can maintain their profile during propagation, even in the presence of moderate perturbations. They offer useful applications in optical communications, all-optical ...
Optics & Photonics
Jun 14, 2021
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3
Unlike the oscillations of sound waves, the oscillations of light are so fast that extremely complex equipment is needed to observe them directly. However, it is possible to measure the frequencies of these oscillations indirectly ...
Optics & Photonics
May 10, 2021
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903
Periodic pulses of light forming a comb in the frequency domain are widely used for sensing and ranging. The key to the miniaturization of this technology toward chip-integrated solutions is the generation of dissipative ...
Optics & Photonics
Feb 22, 2021
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162
A single laser is shot through a microscopic comb, which splits into a rainbow of colors. It all happens in a highly controlled manner on a tiny photonic resonator, and could pave the way toward more accurate clocks, the ...
Optics & Photonics
Dec 15, 2020
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68
Compared with the chiral spin textures in ferromagnets, their antiferromagnetic counterparts can be manipulated by spin currents with a more direct approach due to the absence of the skyrmion Hall effect, and much lower power ...
General Physics
Nov 13, 2020
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11
