Dimitre G. Ouzounov

TL;DR: The results demonstrate a unique capability to deliver high-power pulses in a single spatial mode over distances exceeding 200 meters, and represent an increase in the power that can be propagated in an optical fiber of two orders of magnitude.

TL;DR: This work demonstrates that three-photon microscopy at 1,300-nm excitation enables functional imaging of GCaMP6s-labeled neurons beyond the depth limit of two-ph photon microscopy, and creates opportunities for noninvasive recording of neuronal activity with high spatial and temporal resolution deep within scattering brain tissues.

TL;DR: The endoscope’s imaging capabilities were demonstrated by imaging ex vivo mouse tissue through the collection of intrinsic fluorescence and second-harmonic signal without the need for staining, indicating that the device can be applied in the future to perform minimally invasive in vivo optical biopsies for medical diagnostics.

TL;DR: It is demonstrated that the effects of aberrations and scattering caused by the mouse skull can be reduced with three-photon microscopy, which allows structural and functional imaging of the brain through an intact skull.

TL;DR: An experimental demonstration of fast all-optical switching on a silicon photonic integrated device by employing a strong light-confinement structure to enhance sensitivity to small changes in the refractive index.