3 papers
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
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
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…