activity
20082024
most citedUltra-thin rigid endoscope: Two-photon imaging through a graded-index multi-mode fiber

57 citations · 302 across the 13 of their papers we have counts for

collaborators

13 papers

physics.optics2024★ 10 cited

TL properties of RE-Doped and Co-doped Sol-gel Silica Rods. Application to Passive (OSL) and Real-time (RL) Dosimetry

Mourad Benabdesselam, J. Bahout, Franck Mady +8

Two rods made from sol-gel silica have been doped with Ce ions or co-doped with Ce and Tb ions respectively. First, a thermoluminescence (TL) characterization of the trapping and l…

physics.optics2022

Tapered multi-core fiber for lensless endoscopes

Fatima El Moussawi, Matthias Hofer, Damien Labat +7

We present a novel fiber-optic component, a "tapered multi-core fiber (MCF)", designed for integration into ultra-miniaturized endoscopes for minimally invasive two-photon point-sc…

physics.optics2022★ 26 cited

Miniature 120-beam coherent combiner with 3D printed optics for multicore fiber based endoscopy

Siddharth Sivankutty, Andrea Bertoncini, Victor Tsvirkun +6

We report high efficiency, miniaturized, ultra-fast coherent beam combining with 3D printed micro-optics directly on the tip of a multicore fiber bundle. The highly compact device…

physics.app-ph2019

Flexible lensless endoscope with a conformationally invariant multi-core fiber

Viktor Tsvirkun, Siddharth Sivankutty, Karen Baudelle +5

The lensless endoscope represents the ultimate limit in miniaturization of imaging tools: an image can be transmitted through a (multi-mode or multi-core) fiber by numerical or phy…

physics.optics2018★ 10 cited

Single-shot non-interferometric measurement of the phase transmission matrix in multicore fibers

Siddharth Sivankutty, Viktor Tsvirkun, Géraud Bouwmans +4

A simple technique for far-field single-shot non-interferometric determination of the phase transmission matrix of a multicore fiber with over 100 cores is presented. This phase re…

physics.optics2018★ 33 cited

Nonlinear imaging through a golden spiral multicore fiber

Siddharth Sivankutty, Viktor Tsvirkun, Olivier Vanvincq +3

We report two-photon lensless imaging through a novel golden spiral multicore fiber. This unique layout optimizes the sidelobe levels, field of view, cross-talk, group delay and mo…