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Time‐Modulated Optomechanics Reveal Energy Flow and Inelastic Interactions Between Acoustic Phonons in Nanomembranes

Anuj Kumar Dhiman, Piotr Graczyk, Tobias Held, Mikolaj Pochylski, Kleoniki Sympoura, Rafal Bialek, Jacek Gapinski, Bahram Djafari-Rouhani, Baerbel Rethfeld, Bartlomiej Graczykowski, Thomas Vasileiadis

<div><p>An abrupt change in refractive index, known as a temporal interface, can cause temporal reflection, refraction, and diffraction of light, enabling the development of time-varying photonic devices. Since time-varying optics are based on ultrafast electronic excitations, the...

Laser and Photonics Reviews, 2026, 15 p. ⟨10.1002/lpor.72069⟩. ⟨hal-05834933⟩