Inverse design of mid-infrared diamond waveguide beam splitter
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2024-06-06 |
| Journal | Optics Letters |
| Authors | Yihao Li, Shu Chen, Yanan Yu, Li Chen, TingāHui Xiao |
| Institutions | The University of Tokyo, Henan Academy of Sciences |
| Citations | 2 |
Abstract
Section titled āAbstractāDiamond is a supreme material for mid-infrared (MIR) integrated photonics as it has a transparency window up to 20 Āµm 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 15 Āµm with a small footprint of ā¼15 Āµm Ć ā¼15 Āµm 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.