Deterministic optical manipulation of fluorescent nanodiamonds (FNDs) in fluids has
emerged as an experimental challenge in multimodal biological imaging. Designing and
developing nano-optical trapping strategies to serve this purpose is an important task. In this
Letter, we show how chemically prepared gold nanoparticles and silver nanowires can
facilitate an opto-thermoelectric force to trap individual entities of FNDs using a long working
distance lens, low power-density illumination (532-nm laser, 12 µW/µm^ 2). Our trapping …

Deterministic optical manipulation of fluorescent nanodiamonds (FNDs) in fluids has
emerged as an experimental challenge in multimodal biological imaging. Designing and
developing nano-optical trapping strategies to serve this purpose is an important task. In this
letter, we show how chemically-prepared gold nanoparticles and silver nanowires can
facilitate Optothermoelectric force to trap individual entities of FNDs using a long working
distance lens, low power-density illumination (532 nm laser, 12 𝝁𝑾/𝝁𝒎𝟐). Our trapping …