인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Abstract The field of micro- and nano-mechanics has seen rapid advances driven by applications in sensing, microscopy, and precision instrumentation. Accurate, time-resolved characterization of mechanical dynamics is essential for understanding device behaviour and improving performance. However, conventional optical and electrical methods face trade-offs between sensitivity, linearity, and bandwidth, while frequency-domain approaches are limited in capturing transient dynamics. Here, we present a frequency comb-based time-domain tracking technique for directly observing the full-range dynamic motion of atomic force microscopy (AFM) micro-cantilevers. By leveraging electro-optic sampling between femtosecond optical pulses and ultra-precise photocurrent timing signals, our system enables real-time measurements across six orders of magnitude – from ~ 30 pm thermal fluctuations to ~ 20 µm nonlinear oscillations. The technique reveals complex behaviours including mode coupling, hysteresis, bifurcation, and transient modulation, while maintaining calibration fidelity through thermomechanical noise. This approach bridges the longstanding gap between ultra-sensitive and wide-range motion tracking, offering a powerful tool for studying nonlinear dynamics in micro- and nano-scale mechanical systems. Looking ahead, the method lays the groundwork for advances in high-resolution force sensing, AFM probe optimization, and the broader exploration of dynamic behaviour in precision microsystems.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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