Plasmonic Photonic Integrated Circuit Using Ultra-Compact Capsule-Shaped Metallic Cavity Structures

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K13695
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Optical engineering, Photon science
• Research Institution: The University of Tokyo
• Principal Investigator: Tanemura Takuo 東京大学, 大学院工学系研究科(工学部), 准教授 (90447425)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: 光集積回路 / プラズモニクス

Outline of Final Research Achievements

In this project, we aimed to develop compact plasmonic devices based on metallic cavity structures to realize future ultra-dense photonic integrated circuits. First, we optimized the key device processes to fabricate our original capsule-shaped metallic-cavity structures. As a result, we have succeeded in substantially reducing the sidewall roughness to observe room-temperature lasing operation under optical pumping. We also designed and fabricated a novel device structure with an optimal current-blocking layer to achieve electrically pumped lasing at low temperature. Finally, we proposed and designed a novel cavity structure coupled to an optical waveguide, and succeeded in device fabrication.

Free Research Field

光エレクトロニクス