TY - GEN
T1 - Design, fabrication and characterization of tunable perfect absorber on flexible substrate
AU - Zhao, X.
AU - Fan, K.
AU - Zhang, J.
AU - Seren, H. R.
AU - Metcalfe, G. D.
AU - Wraback, M.
AU - Averitt, R. D.
AU - Zhang, X.
PY - 2014
Y1 - 2014
N2 - This paper reports our recent progress on a highly flexible dynamic perfect absorber at terahertz (THz) frequencies. Metamaterial unit cells were patterned on thin GaAs patches, which were fashioned in an array on a 5μm polyimide substrate via transfer printing technique, and the backside of the substrate was coated with gold film as ground plane. Optical-pump THz-probe reflection measurements show that the absorptivity at resonance frequency of 1.58THz can be tuned up to 57% through photo-excitation of free carriers in GaAs layers in presence of 800nm pump beam. Our flexible tunable MM perfect absorber exhibits potential applications in energy harvesting, imaging and stealth coating.
AB - This paper reports our recent progress on a highly flexible dynamic perfect absorber at terahertz (THz) frequencies. Metamaterial unit cells were patterned on thin GaAs patches, which were fashioned in an array on a 5μm polyimide substrate via transfer printing technique, and the backside of the substrate was coated with gold film as ground plane. Optical-pump THz-probe reflection measurements show that the absorptivity at resonance frequency of 1.58THz can be tuned up to 57% through photo-excitation of free carriers in GaAs layers in presence of 800nm pump beam. Our flexible tunable MM perfect absorber exhibits potential applications in energy harvesting, imaging and stealth coating.
UR - https://openalex.org/W2010738864
UR - https://www.scopus.com/pages/publications/84898935827
U2 - 10.1109/MEMSYS.2014.6765579
DO - 10.1109/MEMSYS.2014.6765579
M3 - Conference Paper published in a book
SN - 9781479935086
T3 - Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
SP - 84
EP - 87
BT - MEMS 2014 - 27th IEEE International Conference on Micro Electro Mechanical Systems
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 27th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2014
Y2 - 26 January 2014 through 30 January 2014
ER -