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Satellites may enable better quantum networks

Satellites may enable better quantum networks

A study by Oak Ridge National Laboratory researchers has demonstrated how satellites could enable more efficient, secure quantum networks

Widely tunable and narrow-linewidth chip-scale lasers from near-ultraviolet to n

Widely tunable and narrow-linewidth chip-scale lasers from near-ultraviolet to n

Widely tunable and narrow-linewidth lasers at visible wavelengths are necessary for applications such as quantum optics, optical clocks and atomic and molecular physics At present, the lasers are benchtop systems, which precludes these technologies from

Correct Laser Wavelength for Raman Material Identification

Correct Laser Wavelength for Raman Material Identification

Over the years, dispersive Raman spectroscopy has been increasingly employed for sample analysis in the areas of biomedical research, material identification, archeology and art, and forensics thanks to its sampling flexibility and portability

All-optical polarization and amplitude modulation of second-harmonic generation

All-optical polarization and amplitude modulation of second-harmonic generation

All-optical polarization and amplitude modulation of second-harmonic generation in atomically thin semiconductors

Lasers: Understanding the Basics

Lasers: Understanding the Basics

Although lasers range from quantum-dot to football-field size and utilize materials from free electrons to solids, the underlying operating principles are always the same This article provides the basic information about how and why lasers work

Study Demonstrates Ultra-Low-Power Second-Order Nonlinear Optics on a Chip

Study Demonstrates Ultra-Low-Power Second-Order Nonlinear Optics on a Chip

In an article published in Nature Communications, researchers have demonstrated efficient frequency doubling and parametric oscillation with a threshold of tens of micro-watts in an integrated thin-film lithium niobate photonic circuit

Manufacturing advances bring material back in vogue

Manufacturing advances bring material back in vogue

The University of Adelaide’s Dr Andy Boes and RMIT University’s Distinguished Professor Arnan Mitchell are leaders in developing lithium niobate (LN) to harness its exceptional properties in photonic chips

A cure for clashing qubits: Researchers successfully entangle different-color ph

A cure for clashing qubits: Researchers successfully entangle different-color ph

(Phys org) —While two-photon interference is an important way of entangling independent identical photons, it does not handle different-color photons with the same aplomb Recently, scientists at the University of Science and Technology of China develop

Visible-Telecom Entangled Photon Pairs Could Support Quantum Communication

Visible-Telecom Entangled Photon Pairs Could Support Quantum Communication

A photon pair source that can bridge the visible and telecom bands could be useful for transporting quantum communications over optical fibers However, the optical components that store and process quantum information typically require visible-light phot

Light Is Dynamically Controlled in a Programmable Electro-Optic System

Light Is Dynamically Controlled in a Programmable Electro-Optic System

CAMBRIDGE, Mass , Jan 9, 2019 — An integrated photonics platform that can store light and electrically control its frequency in an integrated circuit is the newest development from the Harvard John A Paulson School of Engineering and Applied Sciences

One Laser, Six Entangled Modes

One Laser, Six Entangled Modes

A research team in Brazil has used an OPO to demonstrate the simultaneous entanglement of six optical modes in one cavity, using a single continuous-wave (CW) laser source

The Different Types of Laser

The Different Types of Laser

​The term laser stands for light amplification by the stimulated emission of radiation, and it means laser light is always monochromatic (of one specific wavelength) and is also spatially and temporally coherent

KTP FOR SHG (SECOND HARMONIC GENERATION)

KTP FOR SHG (SECOND HARMONIC GENERATION)

KTP (Potassium Titanyl Phosphate - KTiOPO4) is a nonlinear optical material commonly used for frequency doubling of Nd:YAG lasers and other Nd-doped lasers, particularly at a low or medium-power density

New materials extend laser spectral coverage deep into the infrared

New materials extend laser spectral coverage deep into the infrared

Advances in mid-IR nonlinear optical materials have led to low-loss, high-figure-of-merit crystals with broad transparency that greatly expand the wavelength coverage of highly engineered laser sources

Creating Precision Optical Components with Inkjet Printing

Creating Precision Optical Components with Inkjet Printing

NEUCHÂTEL, Switzerland, June 14, 2018 — Researchers at the Swiss Center for Electronics and Microtechnology (CSEM) have developed an inkjet printing technique that can be used to print optical components