Gwangju Institute of Science and Technology

Korea Basic Science Institute

Institute for Basic Science

I Jong Kim

Ki Soo Chang

Il Woo Choi

Geon Hee Kim

Kye Sung Lee

Hong Seung Kim

Hwan Hur

Ji Yong Bae

Chang Hee Nam

Chang-Lyoul Lee

Jongmin Lee

KeeHwan Nam

Gun Hee Kim

Ki Hong Pae

Cheonha Jeon

A spiral phase plate, according to one embodiment, for generating a Laguerre Gaussian beam by reflecting an incident beam emitted from a light source, may comprise: a first quadrant area in which the step height increase rate per unit angle decreases progressively in one direction from the point with the lowest step height to the point with the highest step height; and a second quadrant area in which the step height increase rate per unit angle increases progressively in the one direction.

Reflective spiral phase plate, and apparatus for generating Laguerre Gaussian beam comprising same

Provided is a common-path optical fiber-based handheld parallel optical coherence tomography (OCT) apparatus, including a probe configured to receive the light from a broadband light source and illuminate a measurement target, wherein the probe may include an inner space through which the light passes, a collimator configured to collimate the light incident to the inner space, a diffraction grating configured to diffract the light having passed through the collimator, a galvanometer scanner configured to reflect the light having passed through the diffraction grating, an objective lens configured to concentrate the reflected light on a focal point, and an interferer configured to acquire an interfered light by reflecting at least a portion of the light having passed through the objective lens.

Common-path optical fiber-based handheld parallel optical coherence tomography (OCT) apparatus

The present disclosure provides a method of manufacturing film member for laser-driven ion acceleration, a film target, and a method of manufacturing the same, so that only the film member exists at a laser focusing point on the film target, allowing repeated ion acceleration from the film member by focusing high power laser beams thereon. The method includes preparing a film member solution containing a film material to be used for laser-driven ion acceleration; forming a film member on a base substrate by using the film member solution; and separating the film member from the base substrate by dipping the base substrate having the film member formed thereon into a film parting solvent.

Film member, film target for laser-driven ion acceleration, and manufacturing methods thereof

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Seo-gu, South Korea

I Jong Kim