1. news

Roark Chao's new paper, "Thermally Resilient InGaN/GaN MicroLEDs Maintaining Narrowband Emission to 250 °C", has been published in IEEE Electron Device Letters!

March 23, 2026

Hair-width LEDs could replace lasers — and a UCSB doctoral student is helping make it happen

February 23, 2026

Roark's latest work on microLEDs has been featured in the UCSB Current!

Schuller Lab at SPIE Photonics West

January 18, 2026

Roark, Wesley, and Professor Schuller are representing the Schuller lab with exciting results on GaN-based metasurfaces!  

Roark Chao's new paper, "Enhanced emission efficiency and directionality in InGaN/GaN microLEDs laterally enclosed by distributed Bragg reflectors ", has been published in Optics Express!

January 16, 2026