scholarly journals Piezoelectric Transduction of a Wavelength-Scale Mechanical Waveguide

2020 ◽  
Vol 13 (2) ◽  
Author(s):  
Yanni D. Dahmani ◽  
Christopher J. Sarabalis ◽  
Wentao Jiang ◽  
Felix M. Mayor ◽  
Amir H. Safavi-Naeini
Keyword(s):  
Wavelength Scale ◽  
Piezoelectric Transduction

scholarly journals Observing and controlling a Tamm plasmon at the interface with a metasurface

Nanophotonics ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 897-903 ◽  
Author(s):  
Oleksandr Buchnev ◽  
Alexandr Belosludtsev ◽  
Victor Reshetnyak ◽  
Dean R. Evans ◽  
Vassili A. Fedotov
Keyword(s):  
Liquid Crystal ◽  
Metal Film ◽  
Near Infrared ◽  
Thin Metal Film ◽  
Outer Side ◽  
Spectral Position ◽  
External Perturbations ◽  
Dielectric Mirror ◽  
Wavelength Scale ◽  
Sub Wavelength

AbstractWe demonstrate experimentally that Tamm plasmons in the near infrared can be supported by a dielectric mirror interfaced with a metasurface, a discontinuous thin metal film periodically patterned on the sub-wavelength scale. More crucially, not only do Tamm plasmons survive the nanopatterning of the metal film but they also become sensitive to external perturbations as a result. In particular, by depositing a nematic liquid crystal on the outer side of the metasurface, we were able to red shift the spectral position of Tamm plasmon by 35 nm, while electrical switching of the liquid crystal enabled us to tune the wavelength of this notoriously inert excitation within a 10-nm range.

scholarly journals Ultra-high-Q resonances in plasmonic metasurfaces

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
M. Saad Bin-Alam ◽  
Orad Reshef ◽  
Yaryna Mamchur ◽  
M. Zahirul Alam ◽  
Graham Carlow ◽  
...  
Keyword(s):  
Incident Light ◽  
Reducing Power ◽  
Field Enhancement ◽  
Plasmonic Nanostructures ◽  
High Q ◽  
Alternative Material ◽  
Order Of Magnitude ◽  
Wavelength Scale ◽  
Strong Confinement ◽  
Sub Wavelength

AbstractPlasmonic nanostructures hold promise for the realization of ultra-thin sub-wavelength devices, reducing power operating thresholds and enabling nonlinear optical functionality in metasurfaces. However, this promise is substantially undercut by absorption introduced by resistive losses, causing the metasurface community to turn away from plasmonics in favour of alternative material platforms (e.g., dielectrics) that provide weaker field enhancement, but more tolerable losses. Here, we report a plasmonic metasurface with a quality-factor (Q-factor) of 2340 in the telecommunication C band by exploiting surface lattice resonances (SLRs), exceeding the record by an order of magnitude. Additionally, we show that SLRs retain many of the same benefits as localized plasmonic resonances, such as field enhancement and strong confinement of light along the metal surface. Our results demonstrate that SLRs provide an exciting and unexplored method to tailor incident light fields, and could pave the way to flexible wavelength-scale devices for any optical resonating application.

Compact spectrometer modeling based on wavelength-scale stationary wave Fourier transform in integrated optic

2008 ◽  
Author(s):  
Alain Morand ◽  
Guillaume Custillon ◽  
Pierre Benech ◽  
Etienne Le Coarer ◽  
Gregory Leblond ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Stationary Wave ◽  
Wavelength Scale

scholarly journals Deterministic design of wavelength scale, ultra-high Q photonic crystal nanobeam cavities

2011 ◽  
Vol 19 (19) ◽  
pp. 18529 ◽  
Author(s):  
Qimin Quan ◽  
Marko Loncar
Keyword(s):  
Photonic Crystal ◽  
High Q ◽  
Wavelength Scale ◽  
Nanobeam Cavities

Light scattering by irregular particles much larger than the wavelength with wavelength-scale surface roughness

2016 ◽  
Vol 41 (15) ◽  
pp. 3491 ◽  
Author(s):  
Yevgen Grynko ◽  
Yuriy Shkuratov ◽  
Jens Förstner
Keyword(s):  
Surface Roughness ◽  
Light Scattering ◽  
Wavelength Scale ◽  
Scale Surface

Enlargement of the locally resonant Lamb wave band gap of the phononic crystal plate at the deep sub-wavelength scale

2014 ◽  
Vol 1 (4) ◽  
pp. 045801 ◽  
Author(s):  
Aizhen Hu ◽  
Xin Zhang ◽  
Fugen Wu ◽  
Yuanwei Yao
Keyword(s):  
Band Gap ◽  
Lamb Wave ◽  
Phononic Crystal ◽  
Crystal Plate ◽  
Wave Band ◽  
Wavelength Scale ◽  
Sub Wavelength

Realization of an accurate and repeatable wavelength scale for double subtractive monochromators

Metrologia ◽  
2012 ◽  
Vol 49 (6) ◽  
pp. 779-784 ◽  
Author(s):  
Malcolm White ◽  
Marek Smid ◽  
Geiland Porrovecchio
Keyword(s):  
Wavelength Scale

scholarly journals Measuring and characterizing the line profile of HARPS with a laser frequency comb

2020 ◽  
Vol 645 ◽  
pp. A23
Author(s):  
F. Zhao ◽  
G. Lo Curto ◽  
L. Pasquini ◽  
J. I. González Hernández ◽  
J. R. De Medeiros ◽  
...  
Keyword(s):  
Line Profile ◽  
Frequency Comb ◽  
Laser Frequency ◽  
Line Intensities ◽  
Measured Position ◽  
Wavelength Scale ◽  
Spectral Line Profile ◽  
The Stability ◽  
A Charge

Aims. We study the 2D spectral line profile of the High Accuracy Radial Velocity Planet Searcher (HARPS), measuring its variation with position across the detector and with changing line intensity. The characterization of the line profile and its variations are important for achieving the precision of the wavelength scales of 10−10 or 3.0 cm s−1 necessary to detect Earth-twins in the habitable zone around solar-like stars. Methods. We used a laser frequency comb (LFC) with unresolved and unblended lines to probe the instrument line profile. We injected the LFC light – attenuated by various neutral density filters – into both the object and the reference fibres of HARPS, and we studied the variations of the line profiles with the line intensities. We applied moment analysis to measure the line positions, widths, and skewness as well as to characterize the line profile distortions induced by the spectrograph and detectors. Based on this, we established a model to correct for point spread function distortions by tracking the beam profiles in both fibres. Results. We demonstrate that the line profile varies with the position on the detector and as a function of line intensities. This is consistent with a charge transfer inefficiency effect on the HARPS detector. The estimate of the line position depends critically on the line profile, and therefore a change in the line amplitude effectively changes the measured position of the lines, affecting the stability of the wavelength scale of the instrument. We deduce and apply the correcting functions to re-calibrate and mitigate this effect, reducing it to a level consistent with photon noise.

Deformed wavelength-scale microdisk lasers with quantum dot emitters

2012 ◽  
pp. 225-251
Author(s):  
J-B. Shim ◽  
A. Eberspächer ◽  
J. Wiersig ◽  
J. Unterhinninghofen ◽  
Q.H. Song ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Microdisk Lasers ◽  
Wavelength Scale
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