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physics.optics2026
Phase-edge imaging using q-plate shifts for faster and simpler microscopy
Jigme Zangpo, Hirokazu Kobayashi, Ryo Yasuhara
We present a simplified method for isolating the edges of a phase object from the edges of an amplitude object using a 4f system with an off-axis q-plate. Instead of the four off-a…
physics.optics2024
Single-pixel edge enhancement of object via convolutional filtering with localized vortex phase
Jigme Zangpo, Hirokazu Kobayashi
Microscopy is an essential tool in imaging research, and the edge-enhanced microscope by using the vortex filter is of particular interest as an optical information processing that…
physics.optics2023
Isolation of phase edges using off-axis q-plate filters
Jigme Zangpo, Hirokazu Kobayashi
Edge-enhanced microscopes with q-plate have been attracted more attention to enhance the edges of phase-amplitude objects in biological sample due to their capability for all-direc…