Full text loading...
Computationally simulated hybrid grating lens array and diffraction pattern at . (a) Each element has six nanotubes (intensity grating) and a resultant phase profile due to LCs (phase grating). (b) Simulated diffraction pattern with center zero order using the hybrid grating lens array model.
Optical microscope image of a transparent nanophotonic hybrid grating lens array with six nanotubes per each hybrid grating element and a period of at (magnification 50×).
CCD camera images of diffraction patterns generated from the transparent nanophotonic device under He–Ne laser light (633 nm). (a) Diffraction pattern at , (b) , and (c) .
(a) Diffraction efficiency of the transparent nanophotonic device vs applied voltage. (b) Unwrapped phase in radians of one grating lenslet vs applied voltage.
CCD camera images of diffraction patterns generated from the device under white light. (a) Different wavelengths dispersed in the diffraction orders. (b) Experimentally obtained diffraction angle. The circles represent the angle of diffraction. The diffraction angle for first order is 3.7º.
Article metrics loading...