84 citations · 156 across the 6 of their papers we have counts for
6 papers
In situ Thermal Trimming of Waveguides in a Standard Active Silicon Photonics Platform
Tianyuan Xue, Hannes Wahn, Andrei Stalmashonak +2
We present suspended heater structures fabricated in a standard C- and O-band silicon (Si) photonics platform that can achieve sufficiently high local temperatures to induce effect…
Thermally Induced Refractive Index Trimming of Visible-Light Silicon Nitride Waveguides Using Suspended Heaters
Hong Chen, Tianyuan Xue, Zheng Yong +6
We demonstrate refractive index trimming of visible-light silicon nitride (SiN) waveguides using suspended heater structures. The thermal isolation of the suspended heaters enabled…
Implantable silicon neural probes with nanophotonic phased arrays for single-lobe beam steering
Fu-Der Chen, Ankita Sharma, Tianyuan Xue +12
In brain activity mapping experiments using optogenetics, patterned illumination is crucial for deterministic and localized stimulation of neurons. However, due to optical scatteri…
Implantable Photonic Neural Probes with Out-of-Plane Focusing Grating Emitters
Tianyuan Xue, Andrei Stalmashonak, Fu-Der Chen +6
We have designed, fabricated, and characterized implantable silicon neural probes with nanophotonic grating emitters that focus the emitted light at a specified distance above the…
Optical phased array neural probes for beam-steering in brain tissue
Wesley D. Sacher, Fu-Der Chen, Homeira Moradi-Chameh +13
Implantable silicon neural probes with integrated nanophotonic waveguides can deliver patterned dynamic illumination into brain tissue at depth. Here, we introduce neural probes wi…
Automatic Resonance Alignment of High-Order Microring Filters
Jason C. C. Mak, Wesley D. Sacher, Tianyuan Xue +3
Automatic resonance alignment tuning is performed in high-order series coupled microring filters using a feedback system. By inputting only a reference wavelength, a filter is tune…