Telecommunication-wavelength two-dimensional photonic crystal cavities in a thin single-crystal diamond membrane
- Harvard University, Cambridge, MA (United States); Harvard Univ., Cambridge, MA (United States)
- Harvard University, Cambridge, MA (United States)
- Harvard University, Cambridge, MA (United States); California Institute of Technology (CalTech), Pasadena, CA (United States)
- University of Melbourne, VIC (Australia)
- University of Melbourne, VIC (Australia); RMIT University, Melbourne, VIC (Australia)
We demonstrate two-dimensional photonic crystal cavities operating at telecommunication wavelengths in a single-crystal diamond membrane. We use a high-optical-quality and thin (~300 nm) diamond membrane, supported by a polycrystalline diamond frame, to realize fully suspended two-dimensional photonic crystal cavities with a high theoretical quality factor of ~8 × 106 and a relatively small mode volume of ~2(λ/n)3. The cavities are fabricated in the membrane using electron-beam lithography and vertical dry etching. We observe cavity resonances over a wide wavelength range spanning the telecommunication O- and S-bands (1360–1470 nm) with Q factors of up to ~1800. Our method paves the way for on-chip diamond nanophotonic applications in the telecommunication-wavelength range.
- Research Organization:
- California Institute of Technology (CalTech), Pasadena, CA (United States); Harvard University, Cambridge, MA (United States)
- Sponsoring Organization:
- Air Force; Air Force Office of Scientific Research (AFOSR); Army Research Office (ARO); Australian Research Council; Japan Society for the Promotion of Science (JSPS); National Science Foundation (NSF); Natural Sciences and Engineering Research Council of Canada (NSERC); Office of Naval Research (ONR); USDOE Office of Science (SC)
- Grant/Contract Number:
- SC0020376
- OSTI ID:
- 1978948
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 17 Vol. 119; ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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