Development of three dimensional quadratic nonlinear photonic crystals based on compound semiconductors

2016 Fiscal Year Final Research Report

• Project/Area Number: 26706019
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Optical engineering, Photon science
• Research Institution: The University of Tokyo
• Principal Investigator: Matsushita Tomonori 東京大学, 先端科学技術研究センター, 助教 (50554086)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 非線形光学 / 波長変換デバイス / 分子線エピタキシー / フォトニック結晶 / 化合物半導体

Outline of Final Research Achievements

For obtaining wavelength-converted light waves with higher-oder transverse modes, we have successfully fabricated GaAs/AlGaAs two-dimensional quadratic nonlinear photonic crystal waveguides, which are composed of inversion-stacked periodically-inverted waveguide, by using surface-activation bonding technique. This result will lead to the basis of the fabrication of three-dimensional quadratic nonlinear photonic crystal waveguides.
Furthermore, we proposed high efficient wavelength conversion devices utilizing optical gain based on stimulated interband emission due to current injection to compensate propagation losses, and succeeded in fabricating AlGaAs pin heterojuncition diodes on periodically-inverted GaAs substrates. This will open up novel wavelength conversion devices utilizing current-injection induced optical gain.

Free Research Field

総合理工