Ground State Depletion Nanoscopy Resolves Semiconductor Nanowire Barcode Segments at Room Temperature.

ABSTRACT: Nanowires hold great promise as tools for probing and interacting with various molecular and biological systems. Their unique geometrical properties (typically <100 nm in diameter and a few micrometers in length) enable minimally invasive interactions with living cells, so that electrical signals or forces can be monitored. All such experiments require in situ high-resolution imaging to provide context. While there is a clear need to extend visualization capabilities to the nanoscale, no suitable super-resolution far-field photoluminescence microscopy of extended semiconductor emitters has been described. Here, we report that ground state depletion (GSD) nanoscopy resolves heterostructured semiconductor nanowires formed by alternating GaP/GaInP segments ("barcodes") at a 5-fold resolution

SUBMITTER: Oracz J 

PROVIDER: S-EPMC5391501 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature