Inverse design of mid-infrared diamond waveguide beam splitter.
Opt Lett
; 49(13): 3620-3623, 2024 Jul 01.
Article
em En
| MEDLINE
| ID: mdl-38950224
ABSTRACT
Diamond is a supreme material for mid-infrared (MIR) integrated photonics as it has a transparency window up to 20â
µm that covers the entire fingerprint region. However, its relatively low refractive index poses a challenge in designing an MIR diamond functional device with both small footprint and high transmission efficiency. Here we propose and demonstrate the inverse design of an MIR diamond waveguide beam splitter operating at the wavelength of 15â
µm with a small footprint of â¼15â
µm × â¼15â
µm and a total transmission efficiency above 95%. Our work paves a new avenue for the design of compact and high-efficiency MIR diamond photonic devices.
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MEDLINE
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En
Ano de publicação:
2024
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Article