Openings

We are looking for highly motivated postdocs and graduate students with interests in material processing, nanostructure fabrications, optical microscopy, electrodynamics and optoelectronics characterizations.

Potential research topics include, but not limited to:

I. Optical materials and their applications

• Semiconducting materials and their applications for optoelectronic devices (e.g., LEDs, laser diodes, photodiodes, solar cells, PICs)

• Optical metamaterials and their applications for flat optics (e.g., flat lens, polarimetry, hologram, mode converters, vortex generators)

• Atomically thin materials and their applications for polariton photonics (e.g., optical modulations, optical transistors, optical computing)

• Control of light-matter interactions using 2D waveguides and photonic crystals for advanced optical manipulation.

• Design of optical structures for next-generation displays, optimizing performance for VR/AR devices.

II. Design and fabrication of optical structures 

• 3D additive manufacturing of nanoparticles for generating on-demand 3D nanostructured materials in optical scale

• Inverse design of optical modes in nanostructured thin films and their applications for spatial light modulations within photonics platforms

• Seamless integration of optical materials onto CMOS-based electronics and their applications for photonic integrated circuits on CMOS

III. Electrodynamics and optoelectronics in optical materials

• Microscopy of light transport and optoelectronic conversions (e.g., hyperspectral imaging, photoluminescence, electroluminescence, near-field measurements)

• Spectroscopy of linear and nonlinear processes (e.g., saturable absorptions, harmonics generations, pump-probe measurements)

• Simulation of optical modes and their electrodynamics (e.g., finite-difference time-domain analysis, finite-element method, transfer matrix method) 

I. 광학 재료 및 응용

• 반도체 재료를 활용한 광전자 소자(예 :  LEDs, 레이저 다이오드, 광다이오드, 태양전지, PICs) 개발

• 메타물질 기반 평면광학(flat optics) 응용 (예 :  평면렌즈, 편광분석, 홀로그램, 모드 변환기, 소용돌이 발생기)

• 원자적으로 얇은 재료의 폴라리톤 포토닉스 응용 (예 : 광 변조, 광 트랜지스터, 광 컴퓨팅)

• 2D Waveguide를 활용한 빛-물질 상호작용 제어 및 광자결정(Photonic Crystal) 기반 빛의 전파 제어

• 차세대 디스플레이 응용을 위한 광학 구조 설계: VR/AR 디바이스의 광학적 성능 개선

II. 광학 구조 설계 및 제작

• 3D 나노구조 제작: 광학 스케일에서 맞춤형 3D 나노구조를 생성하기 위한 나노입자 기반 3D 프린팅

• 역설계(Inverse Design): 나노구조 얇은 필름에서 광학 모드 설계 및 광학 플랫폼 내 공간광 변조 응용

• CMOS 통합: CMOS 기반 전자 기기에 광학 재료를 무결점 통합 및 이를 활용한 광집적회로(PICs) 개발

III. 광학 재료에서의 전기역학 및 광전자 특성

• 광 전달 및 광전자 변환 현미경법 (예 : 초분광 이미징, 광발광, 전계발광, 근접장 측정)

• 선형 및 비선형 과정의 분광법 (예 : 포화 흡수, 고차조파 생성, 펌프-프로브 측정)

• 광학 모드와 전기역학 시뮬레이션 (예 : FDTD, FEM, TMM)

Prior experience in semiconductor fabrication, nanoparticle synthesis, optical measurements, electrodynamics simulations, and/or computer programming is desirable but not necessary.
If you are interested, please contact Prof. Myungjae Lee (myungjae@snu.ac.kr).