一种极性衬底调控的电驱动窄带中红外热发射方法及器件
By using an electrically driven method controlled by a polar crystal substrate and utilizing the intrinsic phonon mode of the polar crystal to excite Joule thermally, narrowband mid-infrared thermal emission without micro/nano structures is achieved. This solves the problems of fabrication complexity and dynamic control in existing technologies, provides high-speed electrical control capabilities, and is suitable for applications integrating infrared photonic chips.
CN122121549BActive Publication Date: 2026-07-17HUAZHONG UNIV OF SCI & TECH +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUAZHONG UNIV OF SCI & TECH
- Filing Date
- 2026-04-29
- Publication Date
- 2026-07-17
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Figure CN122121549B_ABST
Abstract
本申请属于中红外热发射控制技术领域，更具体地，涉及一种极性衬底调控的电驱动窄带中红外热发射方法及器件。本申请提供的方法完全摒弃了对复杂微纳结构的设计与加工依赖，仅通过利用极性晶体衬底的本征声子属性与低维材料的电热效应来实现窄带与偏振发射，从而极大地简化了实现路径、降低了工艺成本并有利于大规模制备。此外，该方法创造性地将电信号施加作为核心驱动步骤，取代了传统的整体热学加热，使得热发射的强度能够被实时、快速且可编程地调制，在获得结构简易性的同时，首次为无微纳结构的热发射源赋予了高速动态电控能力，解决了长期存在的技术矛盾。
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