Lasers & Sources

Credit: Na Chen, Hanchao Teng, and Hai Hu
Illustration of nanolight pseudo-birefringence. Credit: Na Chen, Hanchao Teng, and Hai Hu
The quest for ultracompact light-based chips just got a much-needed momentum boost, thanks to a two-step excitation method that pushes polaritons beyond the conventional limitations...
Nov. 24, 2025
Credit: Precitec
Gwenn Pallier, product line manager at Cailabs (left), and Markus Kogel-Hollacher, head of R&D projects at Precitec (right).
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Nov. 20, 2025
Credit: Miriam Serena Vitiello
In the lab with their setup (from left to right): Dr. Alejandro Justo Guerrero, Dr. Alessandra Di Gaspare, Dr. Vladimir Pusharev, Professor Miriam Serena Vitiello, Dr. Lili Shi, and Dr. Leonardo Viti. Credit: Miriam Serena Vitiello
Nov. 19, 2025
Credit: S. Yang, K. Yang, Q. Chevy, A. Kepecs, and S. Hu, Nat. Neurosci. (2025); https://doi.org/10.1038/s41593-025-02106-x
An ultrafast laser writes microscopic grating emitters inside a hair-thin optical fiber to enable panoramic and reconfigurable neural modulation. Credit: S. Yang, K. Yang, Q. Chevy, A. Kepecs, and S. Hu, Nat. Neurosci. (2025); https://doi.org/10.1038/s41593-025-02106-x
Nov. 13, 2025
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Nov. 4, 2025
Credit: Michael Dobinson
Dark-field microscope image of a diode nanocavity device with a grating coupler (left) for optical excitation/collection and electrical connections to the p-i-n diode (top/bottom). Credit: Michael Dobinson
Oct. 30, 2025
False color picture of the watermark of a €20 bank note, showing the amplitude of the transmitted terahertz electrical field signal with varying optical parameters of the material; the highest amplitude is shown in red, and the lowest in blue. The image was recorded by Menlo Systems’ TERA K15 THz-TDS system with TERA Image imaging extension unit and ImageLab processing software.
Oct. 30, 2025
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lfw_ftpsargis_hakobyangraphiclandscape2
Oct. 28, 2025
Credit: NTT Research
Side view of the group’s experimental setup to operate programmable nonlinear photonic waveguides. Credit: NTT Research
Oct. 21, 2025

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