Design for cooling near-field transducer using surface plasmon polariton waveguide for heat-assisted magnetic recording

2018 ◽  
Vol 57 (9S2) ◽  
pp. 09TB01
Author(s):  
Katsuji Nakagawa ◽  
Kousuke Kimura ◽  
Yoshihiko Hayashi ◽  
Kyosuke Tamura ◽  
Yoshito Ashizawa ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Magnetic Recording ◽  
Surface Plasmon Polariton ◽  
Near Field ◽  
Heat Assisted Magnetic Recording ◽  
Plasmon Polariton

scholarly journals Polarization Controllable Device for Simultaneous Generation of Surface Plasmon Polariton Bessel-Like Beams and Bottle Beams

Nanomaterials ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 975 ◽  
Author(s):  
Peizhen Qiu ◽  
Taiguo Lv ◽  
Yupei Zhang ◽  
Binbin Yu ◽  
Jiqing Lian ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polariton ◽  
Near Field ◽  
Polarized Light ◽  
Simultaneous Generation ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Spatially Distributed ◽  
Potential Applications ◽  
Plasmon Polariton

Realizing multiple beam shaping functionalities in a single plasmonic device is crucial for photonic integration. Both plasmonic Bessel-like beams and bottle beams have potential applications in nanophotonics, particularly in plasmonic based circuits, near field optical trapping, and micro manipulation. Thus, it is very interesting to find new approaches for simultaneous generation of surface plasmon polariton Bessel-like beams and bottle beams in a single photonic device. Two types of polarization-dependent devices, which consist of arrays of spatially distributed sub-wavelength rectangular slits, are designed. The array of slits are specially arranged to construct an X-shaped or an IXI-shaped array, namely X-shaped device and IXI-shaped devices, respectively. Under illumination of circularly polarized light, plasmonic zero-order and first-order Bessel-like beams can be simultaneously generated on both sides of X-shaped devices. Plasmonic Bessel-like beam and bottle beam can be simultaneously generated on both sides of IXI-shaped devices. By changing the handedness of circularly polarized light, for both X-shaped and IXI-shaped devices, the positions of the generated plasmonic beams on either side of device can be dynamically interchanged.

scholarly journals Novel droplet near-field transducer for heat-assisted magnetic recording

Nanophotonics ◽  
2015 ◽  
Vol 4 (4) ◽  
pp. 503-510 ◽  
Author(s):  
Jacek Gosciniak ◽  
Marcus Mooney ◽  
Mark Gubbins ◽  
Brian Corbett
Keyword(s):  
Surface Plasmon ◽  
Magnetic Recording ◽  
Near Field ◽  
Metal Structure ◽  
Spot Size ◽  
Impedance Match ◽  
Localized Surface Plasmon ◽  
Heat Assisted Magnetic Recording ◽  
Localized Surface Plasmon Resonances ◽  
High Degree

AbstractTwo main ingredients of plasmonics are surface plasmon polaritons (SPP) and localized surface plasmon resonances (LSPR) as they provide a high degree of concentration of electromagnetic fields in the vicinity of metal surfaces, which is well beyond that allowed by the diffraction limit of optics. Those properties have been used in the new technique of heat assisted magnetic recording (HAMR) to overcome an existing limit of conventional magnetic recording by utilizing a near-field transducer (NFT). The NFT designs are based on excitation of surface plasmons on a metal structure, which re-radiate with a subdiffraction limited light spot confined in the near field. In this paper, we propose a novel “droplet”-shaped NFT, which takes full advantage of a recenltly proposed Mach–Zehnder Interferometer (MZI), a coupling arrangement that allows optimal coupling of light to the transducer. The droplet design ensures better impedance match with the recording media and, consequently, better coupling of power. The droplet design results in very high enhancement of the electric field and allows the confinement of light in a spot size much smaller than the present stateof- the-art lollipop transducer.

The Analysis of Surface Plasmon Polariton Propagating on Silver Nanowire in Near Field

2014 ◽  
Vol 43 (4) ◽  
pp. 424001
Author(s):  
刘爱萍 LIU Ai-ping ◽  
任希锋 REN Xi-feng
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polariton ◽  
Near Field ◽  
Silver Nanowire ◽  
Plasmon Polariton

scholarly journals Generation of Flat Top Surface Plasmon Polariton Beams by Near Field Holography

Nanomaterials ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 1377
Author(s):  
Peizhen Qiu ◽  
Chunyan Bai ◽  
Taiguo Lv ◽  
Dawei Zhang
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polariton ◽  
Structural Parameters ◽  
Near Field ◽  
Practical Application ◽  
Plasmonic Device ◽  
Transverse Profile ◽  
Plasmon Polariton ◽  
The Relationship

Controlling the shape and trajectory of the surface plasmon polariton (SPP) beams is the key to all SPP-based applications. In this paper, a novel plasmonic device that can generate in-plane flat top SPP beams is designed by near field holography. The relationship between the transverse profile intensity of the generated flat top SPP beams and the structural parameters of the designed device is analyzed. The results of this paper can provide the possibility for further practical application utilizing flat top SPP beams.

Measurement of propagation of ultrafast surface plasmon polariton pulses using dual-probe scanning near-field optical microscopy

2019 ◽  
Vol 58 (21) ◽  
pp. 5595
Author(s):  
Yuta Masaki ◽  
Keita Tomita ◽  
Yasuhiro Kojima ◽  
Fumihiko Kannari
Keyword(s):  
Optical Microscopy ◽  
Surface Plasmon ◽  
Surface Plasmon Polariton ◽  
Near Field ◽  
Plasmon Polariton ◽  
Dual Probe
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