Design of micro-nano grooves incorporated into suspended GaN membrane for active integrated optics
Source abstract
Abstract
Micro-nano grooves incorporated into a suspended GaN sheet is proposed for active and passive monolithic integration of silicon based InGaN/GaN blue LEDs. Rigorous finite element method (FEM) simulation is performed to investigate the efficiency of coupling enhancement and regulation effect. The imported efficiency from active source to passive waveguide is significantly improved, especially for small angle incidences and small membrane thickness, due to the active grating coupling effect. The overall imported efficiency increased by 240% in the ±30° incident angle range, and 140% in the ±70° range, with 300 nm membrane thickness and 260 nm grating period. Waveguide gratings exhibit filter and extractor properties respectively at different parameters, realizing direct monolithic modulation to light source. This study demonstrates new possibilities for integrated optics and innovative blue LED integrated applications.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: GaN-based semiconductor devices and materials · Optical Coatings and Gratings · ZnO doping and properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Telecommunication and Information Engineering, Nanjing University of Posts and Telecommunications 1 , Nanjing 210003, China
College of Electronic and Optical Engineering & College of Microelectronics, Nanjing University of Posts and Telecommunications 2 , Nanjing 210023, China
Funding
Reasearch projects of Nanjing University of Posts and Telecommunications · National Natural Science Foundation of China · Natural Science Foundation of Jiangsu Province
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