In Situ Raman Spectroscopy of COOH-Functionalized SWCNTs Trapped with Optoelectronic Tweezers
Figure 2
Dark-field EMCCD video microscopy of optoelectronic trapping of COOH-SWCNTs with laser off (a) and on (b) at an AC bias of 15 Vpp, 100 kHz. Images are inverted to enhance visibility of faint light scattering from SWCNT bundles. The laser line (Ar+, 488 nm) is blocked by a holographic notch filter.
