Journal
APPLIED PHYSICS EXPRESS
Volume 7, Issue 1, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.7567/APEX.7.012201
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Funding
- KAKENHI, JSPS [24681033, 24656237]
- A-STEP (Adaptable and Seamless Technology Transfer Program through Target-driven RD), JST
- Accelerating Utilization of University IP Program, JST
- Tateisi Science and Technology Foundation
- Casio Science Promotion Foundation
- Konica Minolta Science and Technology Foundation
- Takahashi Industrial and Economic Research Foundation
- fund for Kagawa University Young Scientists
- Grants-in-Aid for Scientific Research [24681033, 24656237, 22109007] Funding Source: KAKEN
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We have developed an electrically driven plasmon chip, i.e., an active plasmon filter, consisting of a metallic subwavelength grating modulated by a nano-electro-mechanical system (NEMS) type actuator. The device shifts the plasmon resonance wavelength and the transmittance when an electrical signal is applied. The fabricated filter shows resonance wavelength shifts of 60 nm with a bias voltage of less than 10 V. A rigorous numerical calculation confirms the origin of the surface plasmon resonance and qualitatively explains the effect. Such NEMS optical devices offer rapid voltage-controlled plasmonic tuning of 20 MHz, opening up applications in agile sensing and nanoscale object trapping using actively tailored optical hot spots. (C) 2014 The Japan Society of Applied Physics
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