Non-plasmonic nanostructured semiconductor assisted (NASSCA) optical tweezers

摘要

In the last decade, a breakthrough brought optical tweezers into the nano-world, overcoming the diffraction limit. This is called plasmonic optical tweezers (POT).1) POT are powerful tools used to manipulate nanomaterials. However, POT has several practical issues that need to be overcome.2) First, it is rather difficult to fabricate plasmonic nanogap structures regularly and rapidly at low cost. Second, in many cases, POT suffers from thermal effects (Marangoni convection and thermophoresis se).