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Oct 18Sun
  1. Phys.org Optics & PhotonicsOptics industry69

    Hybrid Diamond Chip Enhances Light-Qubit Interaction

    Researchers have developed and demonstrated a GaP-on-diamond hybrid nanophotonic platform enabling controlled interaction between photons and silicon-vacancy (SiV) centers in diamond. Using stamp transfer, the team fabricated more than 600 nanophotonic cavities on a diamond substrate with a yield of 99.5%, achieving cooperativity above 1 and a spin relaxation time exceeding 0.4 milliseconds, enabling single-shot readout of SiV electron spins. Next steps include connecting multiple devices on the same chip and demonstrating entanglement.

    Why we recommend it: A transfer process that avoids etching the diamond balances device yield with spin-photon coupling, offering a concrete example of how quantum network interfaces could move toward scalable manufacturing.

Oct 16Fri
Oct 15Thu
  1. Optica News CenterOptics industry63

    Gallium Phosphide-Diamond Hybrid Platform Enhances Quantum Light-Matter Interaction

    Researchers integrated gallium phosphide (GaP) nanophotonic cavities onto a diamond substrate using a stamp transfer process, enhancing quantum optical interaction with diamond color centers. The devices are first fabricated by electron-beam lithography in a GaP thin film on a carrier, screened by spectroscopic testing, and then transferred. Experiments achieved cooperativity above 1. The platform can serve as a light-matter interface in quantum networks.

    Why we recommend it: The source details the heterogeneous integration process and the screening-and-transfer workflow, offering useful reference for fabrication routes for diamond color center quantum photonic devices.

Oct 14Wed
  1. Phys.org Optics & PhotonicsOptics industry59

    Quantum network test verifies entanglement without trusting detectors

    Researchers have built a fully connected four-user quantum network, distributing time-frequency entangled photon pairs over six links using a broadband integrated lithium niobate photon source. Using the polarization of the same photon as a trusted quantum input, they can verify and quantify entanglement without trusting the measurement devices.

Oct 13Tue
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Oct 8Thu
  1. Phys.org Optics & PhotonicsOptics industry65

    Levitated glass nanosphere entangled with light at room temperature

    A paper in Science reports that researchers entangled a levitated glass nanosphere with an optical field in an optical trap, achieving the effect at room temperature and providing a new platform for macroscopic quantum mechanics research.

    Why we recommend it: The original article reports entanglement of a macroscopic object with light at room temperature, relevant to optomechanics and quantum sensing

Oct 7Wed
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  1. Light: Science & ApplicationsOptics industry61

    Multilevel Time-Encoded Cluster State Transmitted Over 29.5 km Deployed Fiber

    A paper in Light: Science & Applications used multilevel time encoding to transmit a cluster state over 29.5 km of partially deployed fiber.

    Why we recommend it: The original paper transmitted a high-dimensional cluster state over actually deployed fiber, offering useful lessons for quantum network engineering

Sep 30Wed
  1. Shanghai Institute of Optics and Fine Mechanics (SIOM) · Research UpdatesOptics industry63

    SIOM Proposes Programming Coherent and Quantum Light Sources with Free-Electron Wave Packets

    Researcher Tian Ye and Academician Li Ruxin at the Shanghai Institute of Optics and Fine Mechanics (SIOM), together with Researcher Pan Yiming at ShanghaiTech University and colleagues, 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 nonclassical quantum light, linking quantum state control, high-harmonic radiation and quantum light synthesis.

    Why we recommend it: The original paper proposes a unified framework for free-electron lasers and quantum light sources, relevant to novel light source research

  2. Optics & Photonics NewsOptics industry59

    Fishbone Photonic Crystal Cavity Enables Heterogeneous Integration of Diamond and TiO2 Circuits

    Shuo Sun and colleagues used fishbone photonic crystal cavities to combine diamond nanobeams with titanium dioxide integrated optical circuits, achieving heterogeneous integration.

    Why we recommend it: The original paper presents a new structure coupling diamond color centers to integrated optical circuits, relevant to quantum photonic chips

Sep 23Wed
Jan 28Wed
  1. Hangzhou Institute of Optics and Fine Mechanics · Industry NewsOptics industry43

    Photonic Quantum Computing Firm Turing Quantum Completes Several Hundred Million Yuan Series B Round

    Photonic quantum computing company Turing Quantum announced on January 27 that it had completed a Series B financing round worth several hundred million yuan, with investors including Sichuan Industrial Revitalization Group, Toukong Donghai, Fosun Capital and SenseTime. The Hangzhou Institute of Optics and Fine Mechanics previously participated in its angel round. The funds will be invested in the development of practical quantum computers, breakthroughs in core technologies and the building of R&D talent. The original report said Turing Quantum has achieved mass-producible, scalable and programmable integrated photonic quantum chip manufacturing based on a thin-film lithium niobate material platform.