Spatio-temporal isolator in lithium niobate on insulator

Integrated photonics is making strides towards hosting an increasing range of functionalities on a chip. Examples include information processing and computation as well as optical sensing and ranging applications. This has ...

Scientists develop new lithium niobate laser technology

Scientists at EPFL and IBM have developed a new type of laser that could have a significant impact on optical ranging technology. The laser is based on a material called lithium niobate, often used in the field of optical ...

Quantum vortex formation in the lab

Quantized vortices can be generated in classical experiments of liquid helium and ultracold dilute gases to conduct fundamental and comparative studies of different superfluids. In a new report published in Science Advances, ...

Changing the color of quantum light on an integrated chip

Optical photons are ideal carriers of quantum information. But to work together in a quantum computer or network, they need to have the same color—or frequency—and bandwidth. Changing a photon's frequency requires altering ...

A dual boost for optical delay scanning

Various applications of pulsed laser sources rely on the ability to produce a series of pulse pairs with a stepwise increasing delay between them. Implementing such optical delay scanning with high precision is demanding, ...

Researchers design novel doubly resonant photoacoustic gas sensor

Gas sensors based on photoacoustic spectroscopy (PAS) have advantages of tunable diode laser absorption spectroscopy (TDLAS), such as high sensitivity, high selectivity, and wide dynamic range. The sensor performance required ...

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