250 citations · 528 across the 10 of their papers we have counts for
11 papers
Ultrahigh enhancement of light focusing through disordered media controlled by Megapixel modes
HyeonSeung Yu, KyeoReh Lee, YongKeun Park
We propose and demonstrate a system for wavefront shaping which generates optical foci through complex disordered media and achieves an enhancement factor of greater than 100,000.…
Universal sensitivity of speckle intensity correlations to wavefront change in light diffusers
KyungDuk Kim, HyeonSeung Yu, KyeoReh Lee +1
Here, we present a concept based on the realization that a complex medium can be used as a simple interferometer. Changes in the wavefront of an incident coherent beam can be retri…
Collaborative effects of wavefront shaping and optical clearing agent in optical coherence tomography
Hyeonseung Yu, Peter Lee, YoungJu Jo +4
We demonstrate that simultaneous application of optical clearing agents (OCAs) and complex wavefront shaping in optical coherence tomography (OCT) can provide significant enhanceme…
Label-free optical quantification of structural alterations in Alzheimer's disease
Moosung Lee, Eeksung Lee, JaeHwang Jung +5
We present a quantitative label-free imaging of mouse whole brain tissue slices with sub-micrometre resolution, employing holographic microscopy and an automated scanning platform.…
Remote sensing of pressure inside deformable microchannels using light scattering in Scotch tape
Kyungduk Kim, Hyeonseung Yu, Joonyoung Koh +3
We present a simple but effective method to measure the pressure inside a deformable micro-channel using laser scattering in a translucent Scotch tape. Our idea exploits the fact t…
In vivo deep tissue imaging using wavefront shaping optical coherence tomography
Hyeonseung Yu, Jaehyun Peter Lee, KyeoReh Lee +5
Multiple light scattering in tissue limits the penetration of optical coherence tomography (OCT) imaging. Here, we present in-vivo OCT imaging of a live mouse using wavefront shapi…
Measuring large optical reflection matrices of turbid media
Hyeonseung Yu, Jung-Hoon Park, YongKeun Park
We report the measurement of a large optical reflection matrix (RM) of a highly disordered medium. Incident optical fields onto a turbid sample are controlled by a spatial light mo…
Recent advances in wavefront shaping techniques for biomedical applications
Hyeonseung Yu, Jongchan Park, KyoReh Lee +4
Due to the highly inhomogeneous distributions of refractive indexes, light propagation in complex media such as biological tissue experiences multiple light scattering events. The…
Focusing through turbid media by polarization modulation
Jongchan Park, Jung-Hoon Park, Hyeonseung Yu +1
We demonstrate that polarization modulation of an illumination beam can effectively control the spatial profile of the light transmitted through turbid media. Since the transmitted…
Optogenetic control of cell signaling pathway through scattering skull using wavefront shaping
Jonghee Yoon, Minji Lee, KyeoReh Lee +6
We introduce a non-invasive approach for optogenetic regulation in biological cells through highly scattering skull tissue using wavefront shaping. The wavefront of the incident li…
Asymmetric hysteresis of Néel caps in flux-closure magnetic dots
Olivier Fruchart, Nicolas Rougemaille, Azzedine Bendounan +8
We investigated with XMCD-PEEM magnetic imaging the magnetization reversal processes of Néel caps inside Bloch walls in self-assembled, micron-sized Fe(110) dots with flux-closure…