Researchers integrated gallium phosphide (GaP) nanophotonic cavities onto diamond substrates via a stamp-transfer process, enhancing quantum optical interactions with diamond color centers. The devices were first fabricated in a GaP thin film on a carrier using electron-beam lithography, screened spectroscopically, and then transferred; the experiments achieved cooperativity greater than 1. The platform could serve as a light–matter interface in quantum networks.
Why we recommend it: The original article describes the heterogeneous integration process and the screening-and-transfer workflow, offering useful guidance for fabricating diamond color-center quantum photonic devices.
A paper in Science reports that researchers entangled a levitated glass nanosphere with an optical field in an optical trap, achieving the feat at room temperature and providing a new platform for studying macroscopic quantum mechanics.
Why we recommend it: The original work achieves entanglement between a macroscopic object and light at room temperature, making it relevant to optomechanics and quantum sensing.
Why we recommend it: The original work transmits high-dimensional cluster states over actual deployed fiber, offering useful insights for quantum network engineering
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Shanghai Institute of Optics and Fine Mechanics (SIOM) · Research UpdatesOptics industryPicksAI score6363
Researcher Tian Ye and Academician Li Ruxin's team at the Shanghai Institute of Optics and Fine Mechanics (SIOM), together with Researcher Pan Yiming of ShanghaiTech University and others, have proposed a new mechanism that uses the quadratic phase accumulated during the propagation of free-electron quantum wave packets to simultaneously achieve selectable high-harmonic bunching and synthesis of non-classical quantum light sources, linking quantum state control, high-harmonic radiation and quantum light synthesis.
Why we recommend it: The original work proposes a unified framework for free-electron lasers and quantum light sources, offering useful insights for novel light source research
Shuo Sun and colleagues used a fishbone photonic crystal cavity to combine a diamond nanobeam with a titanium dioxide integrated optical circuit, achieving heterogeneous integration.
Why we recommend it: The original article presents a new structure for coupling diamond color centers to integrated optical circuits, offering value for quantum photonic chips
Researchers at TU Wien propose that letting photons change shape as they propagate could enable perfect quantum information transfer between quantum network nodes.