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Compact Photonic Chip System Brings Miniaturized Atomic Clocks Closer to Reality
April 14, 2023
Researchers have developed a groundbreaking compact photonic chip system that paves the way for miniaturized strontium atomic clocks. The achievement has significant implications for atomic technologies, as miniaturization could lead to a range of benefits in applications such as GPS and communication systems.
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By carefully engineering the geometry of a micrometer-scale, ring-shaped optical resonator, researchers at NIST produced pairs of entangled photons (particles of light) that have two very different colors or wavelengths. Light from a pump laser (purple regions in the resonator) generates one photon in each pair at a visible-light wavelength (red patches in and around resonator); the other photon has a wavelength in the telecommunications (near-infrared) part of the spectrum (blue patches). From the perspective of quantum communication, these pairings combine the best of both worlds in an optical circuit: The visible-light partner can interact with trapped atoms, ions, or other systems that serve as quantum versions of computer memory, while the telecommunications wavelength member of each couple is free to propagate over long distances through an optical fiber network. Credit: S. Kelley/NIST

Optical Resonators: Principles, Types, and Applications in Modern Technology

April 5, 2023

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Optical resonators, sometimes referred to as optical cavities, are essential components in various modern technologies, from…

The new polarimetric hardware installed on the MIRC-X optical bench at CHARA. The top panel shows the Air Spaced Waveplates assembly (1) and motor control boxes (2) in relation to the MIRC-X instrument during initial testing in 2019 November, where calibration was conducted with a pair of linear polarizers (3).

Understanding Air Spaced Waveplates: Applications and Principles

April 3, 2023

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The field of optics has seen significant advancements in recent years, and one of the essential…

Schematic of an optical photonic-memory cell.

All-optical Memory Circuit with High-Speed Operation Developed for Future Signal Processing and Computing Systems

April 1, 2023

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Scientists have developed a new all-optical memory circuit that could revolutionize the way we process signals…

Bathymetric map of the ocean floor showing the continental shelves and oceanic plateaus (red), the mid-ocean ridges (yellow-green) and the abyssal plains (blue to purple) Credit: NOAA

Researchers Develop High-Efficiency Blue Laser for Advanced Bathymetric Lidar Ocean Exploration

March 29, 2023

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A team of researchers has recently announced the successful development of a high-efficiency, nanosecond pulsed blue…

Airborne Lidar Bathymetric Technology-High-resolution multibeam lidar map showing spectacularly faulted and deformed seafloor geology, in shaded relief and coloured by depth

What is Airborne Lidar Bathymetry? A Comprehensive Overview

March 28, 2023

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Airborne lidar bathymetry, a cutting-edge technology that combines light detection and ranging (lidar) with bathymetric principles,…

A 3D printer of the laser powder-bed fusion type, in action. Laser powder-bed fusion adds successive layers of metal powder and then uses a laser to melt each layer into place on the part being created. Image: NIST / KTH.

Synchrotron Experiments Illuminate Path to Enhanced Metal 3D Printing

March 27, 2023

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In an exciting development, scientists from the U.S. National Institute of Standards and Technology (NIST), the…

Petcube Play 2 Wi-Fi Pet Camera with Laser Toy & Alexa Built-In

Pointers | Reviews

Best Cat Laser Toy In 2023

March 26, 2023

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With so many options available on the market, it can be difficult to decide which one…

Experimental results on grasping of target micro-objects by using multiple micro-fingers. The proposed method is general in the sense that any rod-shaped micro-objects that are trappable can be used as fingers, and it also allows users to add more micro-fingers or remove redundant ones (A) Two S-pombe yeasts are trapped as the micro-fingers, which are then coordinated to grasp and rotate a target micro-object. (B) Three S-pombe yeasts are tapped to form a three-fingered micro-hand for grasping and manipulation tasks. (C) Three micro-rods are trapped as micro fingers.

Laser-Actuated Micro-hand Achieves Dexterous Manipulation at Micron Scale

March 24, 2023

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Scientists at Tsinghua University in Beijing have made a breakthrough in the field by developing a…

Amplification of GaSb-Based Diode Lasers in an Erbium-Doped Fluoride Fibre Amplifier

Fiber-Based Amplification of Mid-Infrared Diode Lasers for Improved Medical and Communication Technologies

March 23, 2023

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Scientists have demonstrated for the first time the fibre-based amplification of mid-infrared diode lasers in the…

According to a recent poll, 1 in 8 American adults who have tattoos regret getting one. FDA regulates laser devices used for tattoo removal. Learn safe and effective ways to have your tattoo removed.

How Do Tattoo Removal Lasers Work?

March 23, 2023

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This article will provide an in-depth, educational examination of the science behind tattoo removal lasers, exploring…