연구처

나노구조광소자 연구실

Nanostructured Photonic Devices Laboratory

우리 연구실은 기존 가시광선 및 근적외선 광학기술 대비 연구개발이 많이 진행되지 않은 중적외선 및 테라헤르츠 영역 (1-150 THz, or 파장 2-300µm) 에서 다양한 나노구조를 이용한 광학 소자 및 광학기기 응용 연구를 진행하고 있습니다. 중적외선은 (파장 2-30µm) 분자의 고유 흡수스펙트럼이 넓게 분포하고 있어 환경, 산업, 안전, 군수, 의료 등 다양한 분야에 걸쳐 넓은 응용성을 갖고 있습니다. 우리 연구실에서는 중적외선 영역에서 동작하는 비선형 광학현상 기반의 고효율 메타광원, 초고감도 분자검출/식별 센서, 능동변환 광학필터 및 평면광학 소자 등을 개발하고 있습니다. 테라헤르츠 대역은 (파장 30-300µm) 오랫동안 미개척 주파수 대역이었으며, 투과 이미징 기반 비접촉 비파괴 품질검사, 테라헤르츠 분광기술, 초고속 통신 시스템 등 다양한 응용이 가능해 최근들어 소자 및 시스템 기술 개발이 활발히 이루어지고 있는 영역입니다. 우리 연구실에서는 비선형 광학현상 기반의 고효율 테라헤르츠 메타광원, 테라헤르츠 및 mm wave 광대역 통신을 위한 orbital angular momentum 발생 및 검출 소자 등을 개발하고 있습니다.
Nanophotonics is a research field exploring light-matter interaction between electromagnetic fields and matters over dimensions on the order of or smaller than the wavelength. In recent years, technologies in this area have been explored extensively for variety of applications such as imaging systems, sensors, waveguides, light sources, metamaterials and metasurfaces, to name a few examples. Our research aims at studying and developing plasmonic devices, metamaterials, and metasurfaces in mid-infrared (mid-IR) and terahertz (THz) portion of the electromagnetic spectrum (~1-150THz, or 2-300µm).
Mid-infrared and terahertz photonics, spectral range beginning at the current frequency limits of electronics and ending at the edge of the telecom range, encompass an astounding array of technologies and applications, including environmental monitoring, detection of chemical and biological agents for defense applications, non-contact materials characterization, non-invasive medical diagnostics, and food-safety and quality control applications. Beyond sensing, both the mid-IR and THz have applications in astronomy and have been suggested as potential frequency bands for wireless free-space communication. Although many practical applications are proposed in this spectral range, the relative paucity of IR and THz components calls for novel technologies, such as novel plasmonic, metamaterial, and metasurface phenomena. Our research goals are understanding of exotic optical responses from light-matter interaction of plasmonic phenomena and developing novel photonic devices based on the understandings.

Nanophotonics is a research field exploring light-matter interaction between electromagnetic fields and matters over dimensions on the order of or smaller than the wavelength. In recent years, technologies in this area have been explored extensively for variety of applications such as imaging systems, sensors, waveguides, light sources, metamaterials and metasurfaces, to name a few examples. Our research aims at studying and developing plasmonic devices, metamaterials, and metasurfaces in mid-infrared (mid-IR) and terahertz (THz) portion of the electromagnetic spectrum (~1-150THz, or 2-300µm).
Mid-infrared and terahertz photonics, spectral range beginning at the current frequency limits of electronics and ending at the edge of the telecom range, encompass an astounding array of technologies and applications, including environmental monitoring, detection of chemical and biological agents for defense applications, non-contact materials characterization, non-invasive medical diagnostics, and food-safety and quality control applications. Beyond sensing, both the mid-IR and THz have applications in astronomy and have been suggested as potential frequency bands for wireless free-space communication. Although many practical applications are proposed in this spectral range, the relative paucity of IR and THz components calls for novel technologies, such as novel plasmonic, metamaterial, and metasurface phenomena. Our research goals are understanding of exotic optical responses from light-matter interaction of plasmonic phenomena and developing novel photonic devices based on the understandings.