Waveguide Trapping

FIG. 2. Four-wire (quadrupolar) magnetic waveguide/trap. 

FIG. 3. Comparison of bilinear finline (a) with a four-strip magnetic waveguide/trap (b). 

Figure 10. Silicon Slot waveguide trapping structure, (a) Schematic of waveguide, (b) mode profile showing trapping location.

Optical trapping Photofluidics Radiation pressure Waveguide propulsion Waveguide trapping... 

Photofluidics Waveguide trapping Waveguide propulsion Radiation pressure Optical trapping... 

Broadband spectral levels fall also with increasing borehole depth, but narrow spectral lines due to cultural sources and or waveguide trapping may show less depth dependence. This may result in very different noise decay and signal-to-noise ratio behavior with depth (see section Installations in Subsurface Mines, Tunnels, and Boreholes ). 

Absolute photoluminesccnce efficiency measurements in thin solid films are quite difficult, since light-trapping, waveguiding effects and, possibly, distributions in the emission dipole moments of individual chromophorcs modify the angular distribution of the emission. Dc Mello el al. ]126] have described an improved mclh-... 

Schmidt, B. S. Yang, A. H. J. Erickson D. Lipson, M., Optofluidic trapping and transport on solid core waveguides within a microfluidic device, Opt. Express 2007, 15, 14322 14334... 

The relationship given above is only a first-order approximation and the actual amount of light emitted is color-, material-, and thickness-dependent. Methods employed to overcome efficiency limitations due to light trapping have primarily concentrated on expanding the escape cone of the substrate and suppressing the waveguide modes. These methods... 

Fig. 2 Schematic representation of optochemical sensors depending on the arrangement of the optically active reagents, a Sin-face optodes reagents are directly immobilized over a solid support by (1) covalent bonding, (2) adsorption or (3) electrostatic interactions or a waveguide or are trapped in a porous matrix (4). b Bulk optodes reagents are dissolved in a plasticizer (5)...

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