Microscanners for optical endomicroscopic applications

K Hwang, YH Seo, KH Jeong - Micro and Nano Systems Letters, 2017 - Springer
MEMS laser scanning enables the miniaturization of endoscopic catheters for advanced
endomicroscopy such as confocal microscopy, multiphoton microscopy, optical coherence …

Lissajous fiber scanning for forward viewing optical endomicroscopy using asymmetric stiffness modulation

HC Park, YH Seo, KH Jeong - Optics express, 2014 - opg.optica.org
We report a fully packaged and compact forward viewing endomicroscope by using a
resonant fiber scanner with two dimensional Lissajous trajectories. The fiber scanner …

Handheld endomicroscope using a fiber-optic harmonograph enables real-time and in vivo confocal imaging of living cell morphology and capillary perfusion

K Hwang, YH Seo, DY Kim, J Ahn, S Lee… - Microsystems & …, 2020 - nature.com
Confocal laser endomicroscopy provides high potential for noninvasive and in vivo optical
biopsy at the cellular level. Here, we report a fully packaged handheld confocal …

Lissajous confocal fluorescent endomicroscopy with a lever mechanism and a frequency separation by an asymmetric polymer tube

J Im, Y Chang, MH Lee, D Do, K Lee… - International Journal …, 2023 - Taylor & Francis
We present a confocal fluorescent endomicroscopic system with a Lissajous scan using an
asymmetric polymer tube and piezoelectric (PZT) tube actuator. The fiber cantilever's …

Liquid crystal lens with a shiftable optical axis

W Feng, Z Liu, M Ye - Optics Express, 2023 - opg.optica.org
A liquid crystal (LC) lens with a laterally shiftable optical axis is proposed and demonstrated.
The optical axis of the lens can be driven to shift within the lens aperture without …

Forward imaging OCT endoscopic catheter<? A3B2 show [pmg: line-break justify=" yes"/]?> based on MEMS lens scanning

HC Park, C Song, M Kang, Y Jeong, KH Jeong - Optics letters, 2012 - opg.optica.org
This Letter reports a fully packaged microelectromechanical system (MEMS) endoscopic
catheter for forward<? A3B2 show [pmg: line-break justify=" yes"/]?> imaging optical …

Investigation of piezoelectric driven MEMS mirrors based on single and double S-shaped PZT actuator for 2-D scanning applications

KH Koh, T Kobayashi, C Lee - Sensors and Actuators A: Physical, 2012 - Elsevier
A silicon micromirror driven by piezoelectric Pb (Zr, Ti) O3 cantilever actuator has been
demonstrated for 2-D scanning applications. Two different PZT actuator designs have been …

Integrated wide-angle scanner based on translating a curved mirror of acylindrical shape

YM Sabry, D Khalil, B Saadany, T Bourouina - Optics express, 2013 - opg.optica.org
A wide angle microscanning architecture is presented in which the angular deflection is
achieved by displacing the principle axis of a curved silicon micromirror of acylindrical …

Curved silicon micromirror for linear displacement-to-angle conversion with uniform spot size

YM Sabry, D Khalil, B Saadany… - IEEE Journal of …, 2014 - ieeexplore.ieee.org
This paper reports a novel class of deeply etched curved micromirrors enabling linear
conversion between the reflection angle of incident light beam and displacement of the …

Monolithically integrated glass microlens scanner using a thermal reflow process

S Yoo, JG Ha, JY **, CH Ji… - Journal of Micromechanics …, 2013 - iopscience.iop.org
A monolithically integrated glass microlens optical scanner is presented. A new wafer-level
fabrication approach addresses the issue of microlens integration and alignment in …