Abstract-Broadband terahertz absorber realized by self-assembled multilayer glass spheres

http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-20-12-13566


Dae-Seon Kim, Dong-Hyun Kim, Sehyun Hwang, and Jae Hyung jang

A broadband terahertz (THz) absorber consisting of multilayer glass spheres and polydimethylsiloxane (PDMS) was realized. The multilayer glass spheres were deposited by repeating a self-assembly method used to form monolayer glass spheres and by the spin-coating of PDMS to fill the gaps between the glass spheres. The average reflection at the surface of the absorber was 0.8% and the absorbance was higher than 98% in the frequency range between 0.7 to 2.0 THz.

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