Far-Field Nanoscopic Measuring Technique

Far-Field Nanoscopic Measuring Technique, Fig. 1 Schematic of a typical STED system setup. L , L2, Lj, L4, and L optical lenses, PH and PH2 pinholes, WPj and WP2 wave plate (WPj half wave plate, WP2 quarter wave plate), Pol light polarization direction, DMi and DM2 dichroic mirrors, PP phase plate (vortex mode), APD avalanche photon detector, MF multimode... 

Far-Field Nanoscopic Measuring Technique, Fig. 2 Schematic of a simplified model for LIFPA. (a) Dye passes through laser beam, (b) Fluorescence intensity decay with time because of photobleaching... 

Far-Field Nanoscopic Measuring Technique, Fig. 3 Typical calibration curve between lluoreseenee intensity and flow veloeity in LIFPA measured in a submidoeapillary (Reproduced from Lab-on-a-Chip with permission of RSQ... 

Far-Field Nanoscopic Measuring Technique, Fig. 5 (a) Fluorescence image of the 400 nm 2-D nanochannels. Image was obtained from 320 frame averaging. (b) Profiles of the pH and (c) the proton concentration in the 400 nm 2D nanochannel for water, KCl 10 4, and 10 2 mol/L compared to the bulk pH measured in the microchannel (Reproduced from Analytical Chemistry with permission of ACS)... 

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