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<p>Driven by the need for unified design and miniaturization across bands, this work presents a novel approach to overcoming the single-functionality and limited applications of traditional metasurfaces. Here, a cutting-edge structural chiral metasurface is proposed exhibiting circular dichroism efficiently across three distinct spectral regions: the visible, near infrared, and mid infrared (MIR) bands each offering unique biosensing applications. The engineered metasurface is designed to achieve strong circular dichroism of 0.72, 0.56 and 0.71 in three different bands, providing tailored functionality as a biosensor for different biochemical and medical applications. Also, the designed structure has been tested as haemoglobin sensor for the detection of higher and lower concentration in the visible region, glucose sensor in near infrared region and as a cancer cell detection sensor in the MIR region offering the very high sensitivity.</p>

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Triple-band perovskite based chiral metasurface biosensor with multi-functionalities

  • 期刊论文

  • 发表日期：

    2025年5月30日

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  • Vishakha Sharma,
  • Yogita Kalra,
  • Ravindra Kumar Sinha

摘要

Driven by the need for unified design and miniaturization across bands, this work presents a novel approach to overcoming the single-functionality and limited applications of traditional metasurfaces. Here, a cutting-edge structural chiral metasurface is proposed exhibiting circular dichroism efficiently across three distinct spectral regions: the visible, near infrared, and mid infrared (MIR) bands each offering unique biosensing applications. The engineered metasurface is designed to achieve strong circular dichroism of 0.72, 0.56 and 0.71 in three different bands, providing tailored functionality as a biosensor for different biochemical and medical applications. Also, the designed structure has been tested as haemoglobin sensor for the detection of higher and lower concentration in the visible region, glucose sensor in near infrared region and as a cancer cell detection sensor in the MIR region offering the very high sensitivity.