Traditional acousto-optic (AO) devices based on bulk crystal materials have weak energy confinement abilities for both photons and phonons, leading to a low AO interaction strength. Compared with bulk materials, photonic ...
Optics & Photonics
May 25, 2022
0
41
Just about every car, train and plane that's been built since 1970 has been manufactured using high-power lasers that shoot a continuous beam of light. These lasers are strong enough to cut steel, precise enough to perform ...
Optics & Photonics
May 23, 2022
2
315
The technological advancement of optical lenses has long been a significant marker of human scientific achievement. Eyeglasses, telescopes, cameras, and microscopes have all literally and figuratively allowed us to see the ...
Optics & Photonics
May 16, 2022
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187
Photonic integrated circuits (PICs) use photons as information carriers and are expected to solve the bottleneck problems of microelectronic chips in terms of speed, power consumption and integration density with their advantages ...
Optics & Photonics
May 13, 2022
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3
Carbon dots (CDs) are a kind of zero-dimensional carbonaceous nanomaterial. Due to their ultra-small size (usually less than 10 nm), simple synthesis, low toxicity, well-documented biocompatibility, and outstanding luminescent ...
Bio & Medicine
May 2, 2022
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5
Researchers have developed a new way to apply antireflective (AR) coatings to 3D printed multi-lens systems as small as 600 microns in diameter. Because these coatings help minimize light losses due to reflection, they are ...
Optics & Photonics
Apr 28, 2022
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27
A major research challenge in the field of nanotechnology is finding efficient ways to control light, an ability essential for high-resolution imaging, biosensors and cell phones. Because light is an electromagnetic wave ...
Nanophysics
Apr 11, 2022
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296
Holograms are three-dimensional (3D) images produced by interfering beams of light that reflect physical objects or photographs. In recent years, they were introduced in a variety of settings, for instance to enhance employee ...
New applications in energy, defense and telecommunications could receive a boost after a team from The University of Texas at Austin created a new type of "nanocrystal gel"—a gel composed of tiny nanocrystals each 10,000 ...
Nanomaterials
Feb 18, 2022
0
326
A research team led by Lawrence Berkeley National Laboratory (Berkeley Lab) has demonstrated tiny concentric nanocircles that self-assemble into an optical material with precision and efficiency.
Optics & Photonics
Feb 4, 2022
0
244
