Local-polarization distribution in deuteron glasses

AbstractIntensity and polarization are two fundamental components of light. Independent control of them is of tremendous interest in many applications. In this paper, we propose a general vectorial encryption method, which enables arbitrary far-field light distribution with the local polarization, including orientations and ellipticities, decoupling intensity from polarization across a broad bandwidth using geometric phase metasurfaces. By revamping the well-known iterative Fourier transform algorithm, we propose “à la carte” design of far-field intensity and polarization distribution with vectorial Fourier metasurfaces. A series of non-conventional vectorial field distribution, mimicking cylindrical vector beams in the sense that they share the same intensity profile but with different polarization distribution and a speckled phase distribution, is demonstrated. Vectorial Fourier optical metasurfaces may enable important applications in the area of complex light beam generation, secure optical data storage, steganography and optical communications.

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Broadband Decoupling of Intensity and Polarization with Vectorial Fourier Metasurfaces

10.21203/rs.3.rs-140769/v1 ◽

2021 ◽

Author(s):

Qinghua Song ◽

Arthur Baroni ◽

Pin Chieh Wu ◽

Sébastien Chenot ◽

Virginie Brandli ◽

...

Keyword(s):

Data Storage ◽

Optical Communications ◽

Phase Distribution ◽

Optical Data Storage ◽

Optical Data ◽

Far Field ◽

Polarization Distribution ◽

Broad Bandwidth ◽

Local Polarization ◽

Encryption Method

Abstract Intensity and polarization are two fundamental components of light. Independently control of them is of tremendous interest in many applications. In this paper, we propose a general vectorial encryption method, which enables arbitrary far-field light distribution with the local polarization, including orientations and ellipticities, decoupling intensity from polarization across a broad bandwidth using geometric phase metasurfaces. By revamping the well-known iterative Fourier transform algorithm, we propose “à la carte” design of far-field intensity and polarization distribution with vectorial Fourier metasurfaces. A series of non-conventional vectorial field distribution, mimicking cylindrical vector beams in the sense that they share the same intensity profile but with different polarization distribution and a speckled phase distribution, is demonstrated. Vectorial Fourier optical metasurfaces may enable important applications in the area of complex light beam generation, secure optical data storage, steganography and optical communications.

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NQR in Dipolar and Quadrupolar Glasses

Zeitschrift für Naturforschung A ◽

10.1515/zna-1990-3-417 ◽

1990 ◽

Vol 45 (3-4) ◽

pp. 313-322 ◽

Cited By ~ 5

Author(s):

R. Blinc

Keyword(s):

Distribution Function ◽

Order Parameter ◽

Polarization Distribution ◽

Quadrupole Resonance ◽

Theoretical Predictions ◽

Temperature Dependences ◽

Orientational Distribution ◽

Local Polarization ◽

Nuclear Quadrupole ◽

Orientational Distribution Function

Abstract It is shown that nuclear quadrupole resonance and quadrupole perturbed magnetic resonance represent a powerful technique to determine the local polarization distribution and its second moment, the Edwards-Anderson order parameter, in proton and deuteron glasses. For quadrupolar glasses the local orientational distribution function can be determined from the inhomogeneous NMR or NQR lineshape, thus allowing for a measurement of the quadrupolar Edwards-Anderson order parameter. The comparison of the temperature dependences of the thus obtained order parameters with theoretical predictions then allows for a discrimination between the different possible models of the glassy transition.

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Local polarization distribution in quadrupolar glasses

Physical Review B ◽

10.1103/physrevb.55.816 ◽

1997 ◽

Vol 55 (2) ◽

pp. 816-823 ◽

Cited By ~ 12

Author(s):

B. Tadic-acute ◽

R. Pirc ◽

R. Blinc

Keyword(s):

Polarization Distribution ◽

Local Polarization

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The spatial polarization distribution over the dome of the sky for abnormal irradiance of the atmosphere

Conference on Electromagnetic and Light Scattering ◽

10.1615/ichmt.2007.confelectromagligscat.80 ◽

2007 ◽

Author(s):

S. V. Korkin ◽

Vladimir P. Budak

Keyword(s):

Polarization Distribution

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Influence of solvents on the polarization distribution in PVDF

[Proceedings] 1992 Annual Report: Conference on Electrical Insulation and Dielectric Phenomena ◽

10.1109/ceidp.1992.283230 ◽

2003 ◽

Author(s):

B. Dehlen ◽

G. Eberle ◽

W. Eisenmenger

Keyword(s):

Polarization Distribution ◽

Influence Of Solvents

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Formation of half-period surface relief gratings in azobenzene containing polymer films

Applied Physics B ◽

10.1007/s00340-020-07500-w ◽

2020 ◽

Vol 126 (9) ◽

Author(s):

Joachim Jelken ◽

Carsten Henkel ◽

Svetlana Santer

Keyword(s):

Polymer Film ◽

Polymer Films ◽

Surface Relief ◽

Incident Light ◽

Glassy State ◽

Polarized Light ◽

Half Period ◽

Polarization Distribution ◽

Linearly Polarized ◽

Set Up

Abstract We study the peculiar response of photo-sensitive polymer films irradiated with a certain type of interference pattern where one interfering beam is S-polarized, while the second one is P-polarized. The polymer film, although in a glassy state, deforms following the local polarization distribution of the incident light, and a surface relief grating (SRG) appears whose period is half the optical one. All other types of interference patterns result in the matching of both periods. The topographical response is triggered by the alignment of photo-responsive azobenzene containing polymer side chains orthogonal to the local electrical field, resulting in a bulk birefringence grating (BBG). We investigate the process of dual grating formation (SRG and BBG) in a polymer film utilizing a dedicated set-up that combines probe beam diffraction and atomic force microscopy (AFM) measurements, and permits acquiring in situ and in real-time information about changes in local topography and birefringence. We find that the SRG maxima appear at the positions of linearly polarized light (tilted by 45° relative to the grating vector), causing the formation of the half-period topography. This permits to inscribe symmetric and asymmetric topography gratings with sub-wavelength period, while changing only slightly the polarization of one of the interfering beams. We demonstrate an easy generation of sawtooth profiles (blazed gratings) with adjustable shape. With these results, we have taken a significant step in understanding the photo-induced deformation of azo-polymer films.

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