Search results for photonics and optics

Optics & Photonics Jun 16, 2022

Photonic integrated erbium doped amplifiers reach commercial performance

Erbium-doped fiber amplifiers (EDFAs) are devices that can provide gain to the optical signal power in optical fibers. They are often used in long-distance communication fiber optic cables and fiber-based lasers. Invented ...

Bio & Medicine Jun 16, 2022

A novel photonic chipscope for label-free monitoring of live cell activities

Label-free, non-invasive, and quantitative monitoring of cellular activities is crucial for understanding various biological processes and the response of cells to therapeutic drugs.

Optics & Photonics Jun 15, 2022

Diffuse optics for medical diagnostics: Progress toward standardization

Among the various optics-based tools used in diagnostics, diffuse optics (DO) is rapidly emerging as one of the most attractive technologies. The technique is based on analyzing how light is absorbed and scattered by biological ...

Optics & Photonics Jun 15, 2022

Physicists make leaps in reading out qubits with laser light

Qubits are a basic building block for quantum computers, but they're also notoriously fragile—tricky to observe without erasing their information in the process. Now, new research from the University of Colorado Boulder ...

Optics & Photonics Jun 9, 2022

Researchers demonstrate 40-channel optical communication link, capable of transmitting 400 GB of data per second

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 ...

Bio & Medicine Jun 7, 2022

Triggering microscale self-assembly using light and heat

Self-assembly is the spontaneous organization of building blocks into structures or patterns from a disordered state. Everyday examples include the freezing of liquids or the crystallization of salts. These self-assembly ...

Optics & Photonics Jun 6, 2022

A novel all-optical switching method makes optical computing and communication systems more power-efficient

A group of photonics researchers at Tampere University have introduced a novel method to control a light beam with another beam through a unique plasmonic metasurface in a linear medium at ultra-low power. This simple linear ...

Optics & Photonics Jun 1, 2022

Time-reversal asymmetry surpasses conversion efficiency limit for solar cells

Solar energy is a popular candidate for a sustainable alternative to fossil fuels. A solar cell, or photovoltaic (PV) cell, converts sunlight directly into electricity. However, the conversion efficiency has not been enough ...

Optics & Photonics Jun 1, 2022

Topologically tuned terahertz on a nonlinear photonic chip

Compact terahertz functional devices are highly useful for high-speed wireless communication, biochemical sensing and non-destructive inspection. However, controlled terahertz generation, alongside transport and detection ...

Optics & Photonics May 25, 2022

Highly efficient acousto-optic modulation using non-suspended thin-film lithium niobate-chalcogenide hybrid waveguides

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 ...

page 30 from 40