42 citations · 120 across the 5 of their papers we have counts for
5 papers
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…
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…
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…
Widefield lensless endoscopy with a multicore fiber
Viktor Tsvirkun, Siddharth Sivankutty, Géraud Bouwmans +3
We demonstrate pixelation-free real-time widefield endoscopic imaging through an aperiodic multicore fiber (MCF) without any distal opto-mechanical elements or proximal scanners. E…
Extended field-of-view in a lensless endoscope using an aperiodic multicore fiber
Siddharth Sivankutty, Viktor Tsvirkun, Géraud Bouwmans +4
We investigate lensless endoscopy using coherent beam combining and aperiodic multicore fibers (MCF). We show that diffracted orders, inherent to MCF with periodically arranged cor…