scholarly journals Dynamic and static control of the optical phase of guided p-polarized light for near-field focusing at large angles of incidence

2013 ◽  
Vol 114 (3) ◽  
pp. 033106 ◽  
Author(s):  
Danhong Huang ◽  
M. Michelle Easter ◽  
L. David Wellems ◽  
Henry Mozer ◽  
Godfrey Gumbs ◽  
...  
Keyword(s):  
Near Field ◽  
Polarized Light ◽  
Optical Phase

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 Optimization ofs-Polarization Sensitivity in Apertureless Near-Field Optical Microscopy

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Yuika Saito ◽  
Yoshiro Ohashi ◽  
Prabhat Verma
Keyword(s):  
Spatial Resolution ◽  
Rayleigh Scattering ◽  
Incident Light ◽  
Near Field ◽  
Polarized Light ◽  
Polarization Sensitivity ◽  
Experimental Setup ◽  
Experimental Conditions ◽  
General Belief ◽  
Polarization Configuration

It is a general belief in apertureless near-field microscopy that the so-calledp-polarization configuration, where the incident light is polarized parallel to the axis of the probe, is advantageous to its counterpart, thes-polarization configuration, where the incident light is polarized perpendicular to the probe axis. While this is true for most samples under common near-field experimental conditions, there are samples which respond better to thes-polarization configuration due to their orientations. Indeed, there have been several reports that have discussed such samples. This leads us to an important requirement that the near-field experimental setup should be equipped with proper sensitivity for measurements withs-polarization configuration. This requires not only creation of effective s-polarized illumination at the near-field probe, but also proper enhancement of s-polarized light by the probe. In this paper, we have examined thes-polarization enhancement sensitivity of near-field probes by measuring and evaluating the near-field Rayleigh scattering images constructed by a variety of probes. We found that thes-polarization enhancement sensitivity strongly depends on the sharpness of the apex of near-field probes. We have discussed the efficient value of probe sharpness by considering a balance between the enhancement and the spatial resolution, both of which are essential requirements of apertureless near-field microscopy.

Effect of Substrate and Nanoparticle Spacing on Plasmonic Enhancement in Three-Dimensional Nanoparticle Structures

2017 ◽  
Vol 5 (4) ◽  
Author(s):  
Anil Yuksel ◽  
Edward T. Yu ◽  
Jayathi Murthy ◽  
Michael Cullinan
Keyword(s):  
Near Field ◽  
Three Dimensional ◽  
Polarized Light ◽  
Field Enhancement ◽  
Transverse Magnetic ◽  
Plasmonic Enhancement ◽  
Nanoparticle Assemblies ◽  
Nanoparticle Interactions ◽  
Gap Spacing ◽  
532 Nm

Surface plasmon polaritons associated with light-nanoparticle interactions can result in dramatic enhancement of electromagnetic fields near and in the gaps between the particles, which can have a large effect on the sintering of these nanoparticles. For example, the plasmonic field enhancement within nanoparticle assemblies is affected by the particle size, spacing, interlayer distance, and light source properties. Computational analysis of plasmonic effects in three-dimensional (3D) nanoparticle packings are presented herein using 532 nm plane wave light. This analysis provides insight into the particle interactions both within and between adjacent layers for multilayer nanoparticle packings. Electric field enhancements up to 400-fold for transverse magnetic (TM) or X-polarized light and 26-fold for transverse electric (TE) or Y-polarized light are observed. It is observed that the thermo-optical properties of the nanoparticle packings change nonlinearly between 0 and 10 nm gap spacing due to the strong and nonlocal near-field interaction between the particles for TM polarized light, but this relationship is linear for TE polarized light. These studies help provide a foundation for understanding micro/nanoscale heating and heat transport for Cu nanoparticle packings under 532 nm light under different polarization for the photonic sintering of nanoparticle assemblies.

Precise measurement of optical phase retardation of a wave plate using modulated-polarized light

2010 ◽  
Vol 49 (30) ◽  
pp. 5837 ◽  
Author(s):  
Ying Zhang ◽  
Feijun Song ◽  
Haiyan Li ◽  
Xiaoguang Yang
Keyword(s):  
Precise Measurement ◽  
Polarized Light ◽  
Phase Retardation ◽  
Optical Phase ◽  
Wave Plate

Direct measurement of optical phase in the near field

2000 ◽  
Vol 76 (5) ◽  
pp. 541-543 ◽  
Author(s):  
P. L. Phillips ◽  
J. C. Knight ◽  
J. M. Pottage ◽  
G. Kakarantzas ◽  
P. St. J. Russell
Keyword(s):  
Direct Measurement ◽  
Near Field ◽  
Optical Phase

scholarly journals Near-field focusing with optical phase antennas

2009 ◽  
Vol 17 (20) ◽  
pp. 17801 ◽  
Author(s):  
A. G. Curto ◽  
A. Manjavacas ◽  
F. J. García de Abajo
Keyword(s):  
Near Field ◽  
Optical Phase

Study of TiN nanodisks with regard to application for Heat-Assisted Magnetic Recording

MRS Advances ◽  
2016 ◽  
Vol 1 (5) ◽  
pp. 317-326 ◽  
Author(s):  
Jacek Gosciniak ◽  
John Justice ◽  
Umar Khan ◽  
Brian Corbett
Keyword(s):  
Titanium Nitride ◽  
Data Storage ◽  
Near Field ◽  
Polarized Light ◽  
Higher Order ◽  
Plasmonic Material ◽  
Order Resonance ◽  
Resonance Modes ◽  
Higher Order Modes ◽  
Transmission Measurements

ABSTRACTIn recent years titanium nitride is being considered as a very promising plasmonic material for data storage applications as it exhibits a pronounced plasmonic dipolar resonance and has high thermal stability. However, there is a lack of research where higher order resonance modes are examined. We address this here by performing angle dependent spectral transmission measurements nanodisks arrays made from titanium nitride. The measurements show strong polarization dependence with s-polarized light causing excitation of the quadrupole and higher order resonance plasmonic modes. These higher order modes are required for the state-of-the-art designs of near-field transducers. This, together with its outstanding thermal properties, makes TiN a favourable material for data storage applications.

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