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Diamond on aluminum nitride as a platform for integrated photonic circuits
Author(s) -
Gruhler Nico,
Yoshikawa Taro,
Rath Patrik,
LewesMalandrakis Georgia,
Schmidhammer Edgar,
Nebel Christoph,
Pernice Wolfram H. P.
Publication year - 2016
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201600227
Subject(s) - materials science , diamond , optoelectronics , photonics , photonic integrated circuit , cladding (metalworking) , nitride , infrared , optics , broadband , nanotechnology , layer (electronics) , composite material , physics
Diamond offers superior material properties for realizing advanced integrated optical components. Particularly attractive is its wide transparency window which covers visible and infrared wavelengths. To take advantage of the potential for broadband waveguiding, diamond needs to be surrounded by broadband transparent cladding materials. Here we use diamond deposited onto aluminum nitride as a platform for integrated optics. We demonstrate essential photonic circuitry for coupling light into on‐chip waveguides and show transmission both in the near‐infrared and visible wavelength range. Our approach holds promise for functional diamond devices that cover spectral regions up to the mid‐infrared. Left: Scanning electron micrograph of a diamond waveguide with an overlay of the mode profile. Right: material stack consisting of polycrystalline diamond (PCD) on aluminum nitride (AlN) on silicon (Si) (not to scale).