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Experimental demonstration of ultrasensitive sensing with terahertz metamaterial absorbers: A comparison with the metasurfaces

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Experimental demonstration of ultrasensitive sensing with terahertz metamaterial absorbers: A comparison with the metasurfaces
นักวิจัย : Cong, Longqing , Tan, Siyu , Yahiaoui, Riad , Yan, Fengping , Zhang, Weili , Singh, Ranjan
คำค้น : -
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2558
อ้างอิง : Cong, L., Tan, S., Yahiaoui, R., Yan, F., Zhang, W., & Singh, R. (2015). Experimental demonstration of ultrasensitive sensing with terahertz metamaterial absorbers: A comparison with the metasurfaces. Applied Physics Letters, 106(3), 031107-. , http://hdl.handle.net/10220/25318 , http://dx.doi.org/10.1063/1.4906109
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Applied Physics Letters
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Planar metasurfaces and plasmonic resonators have shown great promise for sensing applications across the electromagnetic domain ranging from the microwaves to the optical frequencies. However, these sensors suffer from lower figure of merit and sensitivity due to the radiative and the non-radiative loss channels in the plasmonic metamaterial systems. We demonstrate a metamaterial absorber based ultrasensitive sensing scheme at the terahertz frequencies with significantly enhanced sensitivity and an order of magnitude higher figure of merit compared to planar metasurfaces. Magnetic and electric resonant field enhancement in the impedance matched absorber cavity enables stronger interaction with the dielectric analyte. This finding opens up opportunities for perfect metamaterial absorbers to be applied as efficient sensors in the finger print region of the electromagnetic spectrum with several organic, explosive, and bio-molecules that have unique spectral signature at the terahertz frequencies.

บรรณานุกรม :
Cong, Longqing , Tan, Siyu , Yahiaoui, Riad , Yan, Fengping , Zhang, Weili , Singh, Ranjan . (2558). Experimental demonstration of ultrasensitive sensing with terahertz metamaterial absorbers: A comparison with the metasurfaces.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Cong, Longqing , Tan, Siyu , Yahiaoui, Riad , Yan, Fengping , Zhang, Weili , Singh, Ranjan . 2558. "Experimental demonstration of ultrasensitive sensing with terahertz metamaterial absorbers: A comparison with the metasurfaces".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Cong, Longqing , Tan, Siyu , Yahiaoui, Riad , Yan, Fengping , Zhang, Weili , Singh, Ranjan . "Experimental demonstration of ultrasensitive sensing with terahertz metamaterial absorbers: A comparison with the metasurfaces."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2558. Print.
Cong, Longqing , Tan, Siyu , Yahiaoui, Riad , Yan, Fengping , Zhang, Weili , Singh, Ranjan . Experimental demonstration of ultrasensitive sensing with terahertz metamaterial absorbers: A comparison with the metasurfaces. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2558.