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<p>We present an experimental investigation of continuous-frequency electric field measurement for D-band terahertz waves based on Rydberg atoms. Using the continuous superheterodyne method in near-resonant and non-resonant regions in the center of a Rydberg energy level, a range of several GHz’s continuous-frequency field strength measurement can be realized. By using six Rydberg states, we accomplished continuous field strength measurement in all D-band terahertz waves, and a minimum detectable electric field strength of 22.08&#xa0;µV/cm was achieved. Our results may provide support for the development of a terahertz atomic spectrum analyzer.</p>

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Continuous-Frequency Electric Field Measurements of D-Band Terahertz Wave Based on Rydberg Atoms

  • 期刊论文

  • 发表日期：

    2025年2月28日

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  • Jiwang Chai,
  • Yang Liu,
  • Yingyun Zhang,
  • Guixiang Liu,
  • Guangtai Xue,
  • Chunsheng Xu,
  • Shunli Han

摘要

We present an experimental investigation of continuous-frequency electric field measurement for D-band terahertz waves based on Rydberg atoms. Using the continuous superheterodyne method in near-resonant and non-resonant regions in the center of a Rydberg energy level, a range of several GHz’s continuous-frequency field strength measurement can be realized. By using six Rydberg states, we accomplished continuous field strength measurement in all D-band terahertz waves, and a minimum detectable electric field strength of 22.08 µV/cm was achieved. Our results may provide support for the development of a terahertz atomic spectrum analyzer.