Journal
APPLIED PHYSICS LETTERS
Volume 103, Issue 16, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4826454
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Funding
- National Basic Research Program of China [2014CB339800]
- National High Technology Research and Development Program of China [2011AA010205]
- National Natural Science Foundation of China [61171027, 11204212]
- Natural Science Foundation of Tianjin of China [13JCZDJC26100]
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We investigated terahertz (THz) magneto-optical properties of a ferrofluid and a ferrofluid-filled photonic crystal (FFPC) by using the THz time-domain spectroscopy. A magnetoplasmon resonance splitting and an induced THz transparency phenomenon were demonstrated in the FFPC. The further investigation reveals that the induced transparency originates from the interference between magnetoplasmon modes in the hybrid magneto-optical system of FFPC, and the THz modulation with a 40% intensity modulation depth can be realized in this induced transparency frequency band. This device structure and its tunabilty scheme will have great potential applications in THz filtering, modulation and sensing. (C) 2013 AIP Publishing LLC.
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