We demonstrate a lithography-free super absorbing metasurface consisting of hybrid Ag-Au nanoantennas with sub-20-nm nanogaps for surface enhanced Raman spectroscopy sensing to tackle the emerging drug-abuse challenge.

© 2019 The Author(s)

PDF Article


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription