Acousto-optical deflectors

Creating multiple laser traps acousto-optical deflectors... 

FIGURE 3.9 An acousto-optic deflector in the Raman-Nath regime (L < A /i.), where the cell can be considered a phase grating spatially modulating the emerging beam. 

FIGURE 3.10 An acousto-optic deflector that is in the Bragg regime (I A /A) the cell can be viewed as a stack of reflecting layers with a period equal to the acoustic wavelength (A). 

E.I. Gordon A review of acousto-optical deflectors and modulator devices. Proc. IEEE 54y 1391 (1966)... 

FIGURE 3.20 Schematic drawing of a guided-wave acousto-optic Bragg deflector, using two tilted surface acoustic waves. 

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