Optical Nano-Imaging

Volume extreme ultraviolet nano-holographic imaging with numerical optical sectioning.

Three dimensional images were obtained using a single high numerical aperture hologram recorded in a high resolution photoresist with a table top lambda = 46.9 nm laser. Gabor holograms were numerically reconstructed over a range of image planes by sweeping the propagation distance in the numerical reconstruction algorithm, allowing numerical optical sectioning. A robust three dimension image o...

Deep subwavelength optical imaging using correlated nano-torches

Nano-Structured Optical Glasses

A variety of oxide glasses and glass-ceramics that contain thermally or optically developed nanostructures will be described along with the properties that derive from the nano-phase, or structural rearrangement. The derived properties include photosensitive, photochromic, photoadaptable color, photorefractive (induced refractive index), photo-machinable, and polarizing.

Optical recoil of asymmetric nano-optical antenna.

We propose nano-optical antennas with asymmetric radiation patterns as light-driven mechanical recoil force generators. Directional antennas are found to generate recoil force efficiently when driven in the spectral proximity of their resonances. It is also shown that the recoil force is equivalent to the Poynting vector integrated over a closed sphere containing the antenna structures.

Nano-sensitive optical coherence tomography.

Depth resolved label-free detection of structural changes with nanoscale sensitivity is an outstanding problem in the biological and physical sciences and has significant applications in both the fundamental research and healthcare diagnostics arenas. Here we experimentally demonstrate a novel label-free depth resolved sensing technique based on optical coherence tomography (OCT) to detect stru...