인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
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 While machine learning holds remarkable potential for designing high-quality (Q) photonic crystal (PC) cavities, its effectiveness heavily relies on the availability of thousands of data samples. This requirement necessitates substantial simulation resources and considerable time. To tackle the challenge of data scarcity in high-Q microcavity designs, we propose an innovative intelligent model for efficient data augmentation that entails merely a few hundred original samples. Notably, our novel structural reshaping strategy, involving the groundbreaking Euler-bend air-hole structure, significantly enhances the fabrication robustness, addressing the consistency difficulty associated with large-scale manufacturing of high-Q PC microcavity arrays. Silicon PC nanobeam cavities are experimentally demonstrated, featuring record-breaking loaded Q factors, large tolerance for the Euler-bend holes and extremely compact sizes of 6 μm 2 . Importantly, to emphasize the on-chip high-resolution signal processing, the cavity-based microwave photonic filters (MPFs) offer unprecedented capabilities, including ultra-narrow bandwidths, an unlimited frequency tuning range and ultra-high rejection ratios using a micrometer-scale cavity. This breakthrough truly transcends the traditional limitations between the filter size, frequency resolution and tuning range. These exceptional characteristics position our MPFs with a cavity-based record-breaking Q MPF / S ratio ( S : device size).
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.