概括
一种新的石墨烯混合型等离子波导 (GHPW) TM通极化器为太赫兹应用提供了高灭绝率和低损耗. 这种紧的设备有效过太赫兹波,使先进的集成系统成为可能.
科学领域:
- 光电学是指光电子产品.
- 纳米技术纳米技术
- 特拉赫兹技术的技术.
背景情况:
- 太赫兹 (THz) 技术需要高效的极化控制元件.
- 现有的极化器经常面临大小,损失和灭绝率的挑战.
研究的目的:
- 为了展示一个紧的,低损耗的,高性能的TM-pass偏振器用于太赫兹频段.
- 使用石墨烯混合型等离子波导 (GHPW) 来提高极化器特性.
主要方法:
- 一个具有石墨烯涂层的脊和半圆弧 (SRA) 芯的高高质量的设计.
- 优化结构参数,包括角,高度,空气间隙和模式转换器长度.
- 数字模拟和分析TM-pass性能,重点关注极化灭绝比和插入损失.
主要成果:
- 实现了30.28dB的高极化灭绝比.
- 在3 THz时获得0.4 dB的低插入损失.
- 证明有效地抑制TE模式,同时允许TM模式通过,损失最小.
结论:
- 开发的 GHPW TM-pass极化器为太赫兹极化控制提供了一个有前途的解决方案.
- 设计方案为优化集成太赫兹系统中的偏振器提供了一条途径.
- 在先进的太赫兹成像,传感和通信系统中潜在的应用.
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