Pressure-induced emission of dopant-free SU-8 for passive photonic devices
Abstract
SU-8, a widely used negative-tone photoresist in microelectronics, has low optical loss and excellent processability, making it promising for photonic integrated devices. However, most existing SU-8-based passive photonic devices rely on dye doping to enhance luminescent performance, increasing fabrication complexity. Here, we applied pressure treatment to four types of SU-8 micropatterns prepared by photolithography, which exhibited intense blue-white emission after pressure release and achieved a 15-fold enhancement. This study demonstrates dye-free photoluminescence enhancement in SU-8, providing a new strategy for SU-8-based passive photonic integration.
Article Details
Journal Info
Applied Physics Letters
American Institute of Physics
Authors (11)
Yang Wang
Xin Wang
Jin-Cheng Lei
State Key Laboratory of High Pressure and Superhard Materials, College of Physics Jilin University , Changchun 130012,
Zongxuan Liu
State Key Laboratory of High Pressure and Superhard Materials, College of Physics Jilin University , Changchun 130012,
Ying-Li Ma
State Key Laboratory of High Pressure and Superhard Materials, College of Physics Jilin University , Changchun 130012,
Rui Wei
Yuqing Wang
Chen-Yang Zhang
State Key Laboratory of High Pressure and Superhard Materials, College of Physics, Jilin University , Changchun 130012,
Yining Meng
State Key Laboratory of High Pressure and Superhard Materials, College of Physics, Jilin University , Changchun 130012,
Shun-Xin Li
Bo Zou
State Key Laboratory of High Pressure and Superhard Materials, College of Physics