Active Magnetoplasmonic Ruler

作者：Zubritskaya Irina^*; Lodewijks Kristof; Maccaferri Nicolo; Mekonnen Addis; Dumas Randy K; Akemaan Johan; Vavassori Paolo; Dmitriev Alexandre

来源：Nano Letters, 2015, 15(5): 3204-3211.

DOI：10.1021/acs.nanolett.5b00372

• magnetoplasmonics
• plasmon ruler
• nickel
• cobalt
• localized surface plasmon resonance
• magneto-optical Kerr effect (MOKE)
• dimer

Plasmon rulers are an emerging concept in which the strong near-field coupling of plasmon nanoantenna elements is employed to Obtain structural information at the nanoscale. Here, we combine nanoplasmonics and nano-magnetism to conceptualize a magnetoplasmonic dimer nanoantenna that would be able to report nanoscale distances While optimizing its own spatial orientation. The latter constitutes an active operation in which a dynamically optimized optical response per measured unit length allows for the measurement of small and large nanoscale distances With about 2 orders of magnitude higher precision than current state-of-the-art plasmon rulers. We further propose,a concept to Optically measure the nanoscale response to the controlled application of force with a magnetic field.

• 出版日期2015-5