Publications

@article{alignmentfree,

title = {Alignment-tolerant hybrid integration of a diamond quantum sensor on a silicon nitride photonic waveguide},

author = {Kosuke Takada and Ryota Katsumi and Kenta Kawai and Daichi Sato and Takashi Yatsui},

doi = {10.1364/OE.559486},

year  = {2025},

date = {2025-05-24},

urldate = {2025-05-24},

journal = {Optics Express},

volume = {33},

issue = {11},

pages = {22769-22779},

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.},

keywords = {Diamond, nanophotonics},

pubstate = {published},

tppubtype = {article}

}