On-chip laser frequency combs—lasers that emit multiple frequencies or colors of light simultaneously separated like the tooth on a comb—are a promising technology for a range of applications including environmental monitoring, ...
Optics & Photonics
Sep 7, 2022
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328
Media with small permittivity, i.e., the epsilon-near-zero (ENZ) media, have drawn a great deal of attention from the fields of physics, materials science, and engineering. The wavelength in ENZ medium is in principle infinitely ...
Optics & Photonics
Aug 26, 2022
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5
Crystalline lithium niobate (LN) is considered the "silicon of photonics" because of its outstanding optical properties, including a broad transparency window and high piezoelectric, acousto-optic, second-order nonlinear, ...
Optics & Photonics
Jul 20, 2022
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43
Researchers have demonstrated a silicon-based optical communication link that combines two multiplexing technologies to create 40 optical data channels that can simultaneously move data. The new chip-scale optical interconnect ...
Optics & Photonics
Jun 9, 2022
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141
Optical frequency combs have changed science and technology as we know it. Responsible for measuring things like infrared and ultraviolet light, greenhouse gases, atomic clocks, and disease, optical frequency combs act as ...
Optics & Photonics
Mar 18, 2022
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91
Medical imaging techniques provide a unique view inside the body and are invaluable for diagnosis and disease monitoring. From X-ray, over MRI to ultrasound, the field is vast and diverse. When imaging biological tissue, ...
Optics & Photonics
Feb 17, 2022
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14
For the first time, scientists were able to create ultrashort dark and bright light pulses that are linked together in tiny glass rings called microresonators. Each of the flashes consist of many different, precisely defined ...
Optics & Photonics
Jan 27, 2022
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49
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
Holography is a powerful technique of photography of a light field without a lens for 3D imaging and display. Now, scientists at the Max-Planck Institute of Quantum Optics are moving holography forward by implementing it ...
Optics & Photonics
Dec 2, 2021
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461
On the cover of the Pink Floyd album Dark Side of the Moon, a prism splits a ray of light into all the colors of the rainbow. This multicolored medley, which owes its emergence to the fact that light travels as a wave, is ...
Optics & Photonics
Sep 28, 2021
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