ETRI-Knowledge Sharing Plaform

ENGLISH

성과물

논문 검색
구분 SCI
연도 ~ 키워드

상세정보

학술지 Rewritable Full-color Computer-generated Holograms based on Color-selective Diffractive Optical Components including Phase-change Materials
Cited 27 time in scopus Download 11 time Share share facebook twitter linkedin kakaostory
저자
황치영, 김기현, 양종헌, 황치선, 조성목, 이원재, 피재은, 최지훈, 최경희, 김희옥, 이승열, 김용해
발행일
201812
출처
Nanoscale, v.10 no.46, pp.21537-22068
ISSN
2040-3364
출판사
Royal Society of Chemistry (RSC)
DOI
https://dx.doi.org/10.1039/c8nr04471f
협약과제
18MF1200, 디지털 홀로그래픽 테이블탑형 단말 기술 개발, 김진웅
초록
We propose rewritable full-color computer-generated holograms (CGHs) based on color-selective diffraction using the diffractive optical component with the resonant characteristic. The structure includes an ultrathin layer of phase-change material Ge2Sb2Te5 (GST) on which a spatial binary pattern of amorphous and crystalline states can be recorded. The CGH patterns can be easily erased and rewritten by the pulsed ultraviolet laser writing technique owing to the thermally reconfigurable characteristic of GST. We experimentally demonstrate that the fabricated CGH, having a fine pixel pitch of 2 μm and a size of 32.8 × 32.8 mm2, reconstructs the three-dimensional holographic images. In addition, the feasibility of the rewritable property is verified by erasing and rewriting part of the CGH.
KSP 제안 키워드
Binary pattern, Computer generated holograms(CGH), Phase Change Material(PCM), Three dimensional(3D), Ultraviolet laser, color-selective, erasing and rewriting, full-color, laser writing, optical components, ultrathin layer