Alignment-tolerant hybrid integration of a diamond quantum sensor on a silicon nitride photonic waveguide
Year: 2025
Type: article
Abstract: Hybrid-integrated photonic circuits play a crucial role in recent quantum technologies. However, deterministic and alignment-tolerant methods are still lacking, and their development is crucial for accelerating the scalable fabrication of quantum systems. In this study, we demonstrate alignment-tolerant coupling between diamond and silicon nitride waveguides using the deterministic transfer-printing method. To validate this approach, we also demonstrate the capability of on-chip quantum sensing using nitrogen vacancy centers in diamond waveguides. These results pave the way for compact packaging of highly sensitive quantum sensors based on photonic integrated circuits.
Source: Optics Express
DOI: 10.1364/oe.559486
Authors: Kosuke Takada, Ryota Katsumi, Kenta Kawai, Daichi Sato, Takashi Yatsui
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
Funders: Asahi Glass Foundation, Nippon Sheet Glass Foundation for Materials Science and Engineering, Ministry of Education, Culture, Sports, Science and Technology, Marubun Research Promotion Foundation, Murata Science Foundation, Japan Society for the Promotion of Science, Precursory Research for Embryonic Science and Technology
OpenAlex ID: W4409372957