Plasmonic Device Heat Dissipation Section
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Solution Overview
Problem
Existing plasmonic devices for generating modulated optical signals face challenges with power-handling and heat dissipation, which can lead to reliability issues and reduced performance over time.
Innovation Solution
A plasmonic device is designed with a substrate, a plasmonic section that includes a confining structure and an optical material for creating a plasmonic waveguide, and a heat dissipation section that thermally cooperates with the waveguide to efficiently dissipate heat. The heat dissipation section is strategically arranged to maximize thermal contact with the plasmonic section, enhancing heat removal and maintaining the device's temperature below critical levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a plasmonic device is designed with high power-handling capability, then the optical signal generation performance is improved, but heat dissipation becomes insufficient leading to thermal accumulation and reliability degradation
Solution Approach 1:
The device is divided into distinct functional sections: a plasmonic section for optical signal generation and a separate heat dissipation section for thermal management. This segmentation allows each component to be optimized independently - the plasmonic section can handle high power while the heat dissipation section efficiently removes generated heat, preventing thermal accumulation.
Solution Approach 2:
A heat dissipation section acting as an intermediary thermal management component is introduced between the plasmonic waveguide and the environment. This heat dissipation section serves as a dedicated thermal pathway that mediates heat transfer from the high-power plasmonic section, enabling effective heat removal without compromising the optical performance.
2Speed
If the plasmonic waveguide is designed for high-speed operation, then the signal generation speed is improved, but heat dissipation capability deteriorates leading to thermal instability
Solution Approach 1:
By separating the high-speed plasmonic waveguide function from the heat dissipation function into distinct sections, the design allows the waveguide to operate at high speeds while the dedicated heat dissipation section maintains thermal stability. The segmentation prevents thermal feedback that would otherwise limit the operating speed.
Solution Approach 2:
The heat dissipation section acts as an intermediary that decouples the thermal management function from the high-speed signal generation function. This intermediary structure enables the plasmonic waveguide to achieve high-speed operation while the heat dissipation section independently maintains thermal stability through efficient heat removal.
3Area of stationary object
If metal layers are used to create plasmonic slots, then the device footprint is reduced, but heat dissipation capability is insufficient
Solution Approach 1:
The design merges the plasmonic slot structure with an integrated heat dissipation section in a compact configuration. The heat dissipation section is strategically positioned to thermally cooperate with the plasmonic waveguide, enabling effective heat removal from the metal layers while maintaining a reduced device footprint through space-efficient integration.
Solution Approach 2:
A heat dissipation intermediary section is introduced adjacent to the metal layer plasmonic slot structure. This intermediary heat dissipation component provides an additional thermal pathway for heat removal from the metal layers, improving heat dissipation capability without significantly increasing the overall device footprint.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The proposed solution effectively addresses the power-handling and heat dissipation challenges, improving the reliability and long-term performance of the plasmonic device by maintaining optimal temperature conditions and reducing thermal-related issues.
Implementation Method 1
a heat dissipation section thermally cooperating with the plasmonic waveguide for dissipating heat from the plasmonic waveguide
Implementation Method 2
Plasmonic devices enable to localize and guide light on the nanometer scale, and to offer high-speed behavior
Data Source
AI summary
A plasmonic device (1) for generating a modulated optical signal comprises: a substrate (2): a plasmonic section (3) which includes at least one confining structure (31, 32) and an optical material (33) for providing a plasmonic waveguide (34); and a heat dissipating section (4) thermally cooperating with the plasmonic waveguide (34) for dissipating heat from the plasmonic waveguide (34), wherein the plasmonic section (3) is configured to generate from an optical signal which is coupled into the plasmonic section (3) a modulated optical signal which is modulated in accordance with an electrical signal applied to the at least one confining structure (31, 32).