Scientific Results

Slit arrays for plasmon-enhanced vibrational circular dichroism: characterization of the local field enhancement

Year: 2019

Authors: Baldassarre L., Mattioli F., Mazzeo G., Longhi G., Abbate S., Pellegrini G., Rusconi F., Celebrano M., Finazzi M., Duo L., Zanchi C., Tommasini M., Pea M., Cibella S., Sciortino F., Nucara A., Ortolani M., Biagioni P.

Autors Affiliation: Sapienza Univ Roma, Dipartimento Fis, Rome, Italy; CNR, Ist Foton & Nanotecnol IFN, Rome, Italy;‎ Univ Brescia, Dipartimento Med Mol & Traslaz, Brescia, Italy; CNR, Ist Nazl Ott INO, Brescia, Italy;‎ Politecn Milan, Dipartimento Fis, Milan, Italy; Politecn Milan, Dip Chim Mat & Ingn Chim, Milan, Italy

Abstract: We present mid-infrared arrays of resonant chiral plasmonic nanostructures (chiral slit pairs) that are designed to feature a strong circular dichroism and an enhanced near-field optical chirality. We fabricated both right- and left-handed arrays and characterized them by means of both reflection and transmission infrared spectroscopy. Moreover, as a preliminary step towards surface-enhanced vibrational circular dichroism experiments, we experimentally studied the local field enhancement within the individual slits.

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More Information: WOS:000591783800394
ISBN:978-1-5386-8285-2 ISSN: 2162-2027
2019 44TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)
Book Series: International Conference on Infrared Millimeter and Terahertz Waves
KeyWords: mid-infrared arrays

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