Abstract: A plasmonic device having a transparent conducting oxide (TCO) waveguide and a tunable voltage applied across the TCO and a metal layer for modulating an input optical signal.

Abstract: A heat assisted magnetic recording (HAMR) write apparatus has a media-facing surface (MFS) and is coupled with a laser that provides energy. The HAMR write apparatus includes a waveguide, a near-field transducer (NFT), a pole and coil(s) for energizing the pole. The waveguide is optically coupled with the laser and directs a first portion of the energy toward the MFS. The NFT is optically coupled with the waveguide. The pole writes to a region of the media and includes a pole tip. A first portion of the pole tip is at the MFS and is separated from the NFT in a down track direction. A second portion of the pole tip is recessed from the MFS and between the first portion and the NFT.

Abstract: A device for color imaging including an optical sensor having light sensitive pixels with a metal film disposed over the light sensitive pixels. The metal film has a group of nano-holes arranged over the pixels according to a periodic lattice formation and is configured to pass light of a preselected first range of wavelengths. The group of nano-holes arranged over an adjoining group of pixels is configured to pass light having ranges of wavelengths different from the first range of wavelengths.

Abstract: A plasmonic device having a transparent conducting oxide (TCO) waveguide and a tunable voltage applied across the TCO and a metal layer for modulating an input optical signal.

Abstract: A plasmonic device having a transparent conducting oxide (TCO) waveguide and a tunable voltage applied across the TCO and a metal layer for modulating an input optical signal.

Abstract: A near field transducer (NFT) for heat assisted magnetic recording (HAMR) having a dual waveguide excitation system located adjacent to opposite sides of a plasmonic antenna. The light to one of the waveguides can be passed through a phase shifter so that its electric field is 180 degrees out of phase with that of the other waveguide. In this way, the energy from each of the waveguides can be delivered to the plasmonic antenna in an additive manner while heat-sinking schemes can be implemented in the orthogonal direction for greatly improving the optical efficiency and thermal stability of the NFT.

Abstract: An NFT is used in a HAMR magnetic write head. The NFT functions as a resonant circuit when in operation. The resonant circuit, which comprises the NFT, is a split-ring resonator (SRR) that has a capacitive portion and an inductive portion. The inductance and the capacitance results in a very well focused ultra-small spot-size concentrated on the magnetic media. The focus occurs at the capacitive area of the NFT with minimal to no impact upon the write pole of the HAMR magnetic head.

Abstract: An NFT is used in a HAMR magnetic write head. The NFT functions as a resonant circuit when in operation. The resonant circuit, which comprises the NFT, is a split-ring resonator (SRR) that has a capacitive portion and an inductive portion. The inductance and the capacitance results in a very well focused ultra-small spot-size concentrated on the magnetic media. The focus occurs at the capacitive area of the NFT with minimal to no impact upon the write pole of the HAMR magnetic head.

Abstract: A plasmonic device having a transparent conducting oxide (TCO) waveguide and a tunable voltage applied across the TCO and a metal layer for modulating an input optical signal.

Abstract: A device for color imaging including an optical sensor having light sensitive pixels with a metal film disposed over the light sensitive pixels. The metal film has a group of nano-holes arranged over the pixels according to a periodic lattice formation and is configured to pass light of a preselected first range of wavelengths. The group of nano-holes arranged over an adjoining group of pixels is configured to pass light having ranges of wavelengths different from the first range of wavelengths.