What is it about?
Terahertz radiation is in high demand in diverse applications, including biomedicine, communications, and security. Nowadays there is a variety of methods to generate radiation in the terahertz spectral range, which however either suffer from broad emission spectrum and low output power or are so complex and bulky that they cannot be used in portable devices. In the present paper, I propose a principally new approach to the generation of terahertz radiation which can resolve this dilemma.
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Why is it important?
Terahertz sources required in biomedical and security applications must be compatible with the lab-on-a-chip technology. Being compared with the existing on-chip terahertz spectroscopy, the novel approach does not need a bulky and highly energy-consuming femtosecond laser and can be powered just by a heated wire. The proposed source can produce an output of a few tens of milliwatts, exceeding the radiating power typical for terahertz photoconductive antenna technology. Its operation can be fully controlled by an applied voltage that is important for possible applications in terahertz electronics.
Perspectives
I believe that the proposed approach can pave a way to a new generation of portable terahertz devices which will find applications in biomedicine, communications, and security.
Vladimir Bordo
Independent Researcher
Read the Original
This page is a summary of: Proposal for an electrically controlled terahertz micro-oscillator, AIP Advances, May 2025, American Institute of Physics,
DOI: 10.1063/5.0256137.
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