Polarization holography 1: A new high-efficiency organic material with reversible photoinduced birefringence

Тодоров, Т.; Nikolova, L.; Tomova, N.

doi:10.1364/ao.23.004309

Cited by 829 publications

(412 citation statements)

References 9 publications

Supporting

Mentioning

408

Contrasting

Unclassified

Order By: Relevance

“…Over the past decade PGs have been attracted much attention due to a unique combination of their optical properties: (a) it is possible to achieve 100% diffraction into a single order; (b) diffraction efficiencies are highly sensitive to the incident light polarization; and (c) the state of polarization of diffracted orders is determined solely by the parameters of a PG [1][2][3][4]. There are numerous applications in a variety of fields, including polarimeters, displays, polarizing beam splitters, beam steering, and polarization multiplexers where PGs have been found to be useful (for recent reviews, see the articles [5][6][7] and the monograph [8]).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Polarization-gratings approach to deformed-helix ferroelectric liquid crystals with subwavelength pitch

et al. 2011

View full text Add to dashboard Cite

Electro-optical properties of deformed helix ferroelectric liquid crystal (DHFLC) cells are studied by using a general theoretical approach to polarization gratings in which the transmission and reflection matrices of diffraction orders are explicitly related to the evolution operator of equations for the Floquet harmonics. In the short-pitch approximation, a DHFLC cell is shown to be optically equivalent to a uniformly anisotropic biaxial layer where one of the optical axes is normal to the bounding surfaces. For in-plane anisotropy, orientation of the optical axes and birefringence are both determined by the voltage applied across the cell and represent the parameters that govern the transmittance of normally incident light passing through crossed polarizers. We calculate the transmittance as a function of the electric field and compare the computed curves with the experimental data. The theoretical and experimental results are found to be in good agreement.

show abstract

Section: Introductionmentioning

confidence: 99%

“…These gratings are our primary interest. Common methods most generally employed to derive theoretical results for PGs typically rely on the well-known Jones matrix formalism and its modifications [1][2][3][4][5][8][9][10][11]21]. These results are limited by their assumptions to large gratings periods and normal incidence.…”

Section: Introductionmentioning

confidence: 99%

Polarization-gratings approach to deformed-helix ferroelectric liquid crystals with subwavelength pitch

et al. 2011

View full text Add to dashboard Cite

show abstract

“…1 To date, photoinduced molecular reorientation with a large optical anisotropy has been attained using many types of photosensitive materials, including polymeric and monomeric materials comprised of axis-selectively photoreactive moieties. [2][3][4][5][6][7] Among these materials, azobenzene-containing materials have been extensively studied due to their applicability to information storage and birefringent optical devises. [1][2][3][4][5][6] In the photoinduced reorientation, the azobenzene molecules reorient according to the polarization state of the light beams based on axisselective trans-cis-trans photoisomerization.…”

mentioning

confidence: 99%

“…[2][3][4][5][6][7] Among these materials, azobenzene-containing materials have been extensively studied due to their applicability to information storage and birefringent optical devises. [1][2][3][4][5][6] In the photoinduced reorientation, the azobenzene molecules reorient according to the polarization state of the light beams based on axisselective trans-cis-trans photoisomerization. Additionally, holographic exposure often results in surface relief (SR) formation due to the periodic photoisomerization of the azobenzene molecules with varying degrees of photoreaction as well as the polarization conditions of the exposure light beam.…”

mentioning

confidence: 99%

Photoinduced reorientation and polarization holography in a new photopolymer with 4-methoxy-N-benzylideneaniline side groups

Kawatsuki¹,

Matsushita²,

Kondo³

et al. 2013

Apl Materials

View full text Add to dashboard Cite

The photoinduced reorientation and surface relief (SR) formation behaviors of a novel photosensitive polymer, which was transparent in visible region, were investigated using linearly polarized-313-nm light and holographic exposure with a 325-nm He-Cd laser. The polymer was comprised of photosensitive 4-methoxy-N-benzylideneaniline side groups, and exhibited a sufficient photoinduced molecular reorientation with a birefringence of 0.11. Holographic exposure generated a SR structure, which had a periodical molecular reorientation that depended on the polarization of the interference beams. The generated SR height was ∼212 nm, and the inscription of a double holographic exposure yielded a two-dimensional SR structure

show abstract

“…Because there is no interference for cross polarization, anisotropic medium is usually used to record the polarization hologram. [30,31] Suppose there are two equal plane waves, one is LCP and the other RCP. The combination of left and right circular polarizations yields linear polarization with direction of…”

Section: Resultsmentioning

confidence: 99%

Generation of Radial Polarized Lorentz Beam with Single Layer Metasurface

Guo

Wang

et al. 2017

Advanced Optical Materials

View full text Add to dashboard Cite

as well as ultrafast phenomena sensing. [11] Practical applications for nondiffracted waves include light collimating, focusing, and shaping. [12][13][14] The Lorentz beam is a nondiffracted wave that is characterized by small size, long focal length, and extended transmission distance. [12] Typical techniques to produce Lorentz beams usually involve combinations of multiple optical elements. However, such systems are bulky, complicated, and inconvenient. To generate such novel beams simply, we employ a single layer metasurface device to modulate simultaneously the amplitude and polarization of the illuminating light. Metasurfaces are viewed as a kind of artificial material composed of periodic subwavelength metal or dielectric structures. When coupled resonantly to the electric and/or magnetic components of an incident electromagnetic field, they provide a spatially varying optical response (e.g., scattering amplitude, phase, and polarization). With the advantage of easy-etching, ultrathin as well as miniaturization, a broad range of applications of metasurfaces has been reported, including superlenses, [15,16] wave plates, [17][18][19] nonlinear optics, [20] and holograms. [21] However, these previous studies were focused on modulating one attribute of light beams, for example amplitude, phase or polarization. Several studies were reported to have modulated the phase [22] and polarization direction. [23] Only numerical simulations are carried out to demonstrate the ability of metasurface for multiple parameters modulation because double-layer structures [24] are difficult to fabricate. Traditionally, the concentric metal-ring wire grid is used to achieve radial polarization. [25][26][27] The structure is relatively simple but fails to generate amplitude modulation. Furthermore, circularly polarized light is required to generate radially polarized light; nevertheless, it comes accompanied by an unexpected vortex phase distribution. In this work, a designed metasurface is fabricated consisting of crosses of various sizes and orientations. The variation in size is employed to modulate the amplitude whereas variation in orientation is used to modulate the polarization distribution. With right/left circularly polarized (RCP/LCP) incidence, the output polarization may be radial or angular, whereas the amplitude obeys the Lorentz distribution. Nine cross structures were fabricated to achieve certain desired amplitude and polarization modulations. The polarization and amplitude distributions of the beam generated by the device are detected using a terahertz focal plane imaging system. A strong agreement between theoretical and experimental results was

show abstract

Polarization holography 1: A new high-efficiency organic material with reversible photoinduced birefringence

Cited by 829 publications

References 9 publications

Polarization-gratings approach to deformed-helix ferroelectric liquid crystals with subwavelength pitch

Polarization-gratings approach to deformed-helix ferroelectric liquid crystals with subwavelength pitch

Photoinduced reorientation and polarization holography in a new photopolymer with 4-methoxy-N-benzylideneaniline side groups

Generation of Radial Polarized Lorentz Beam with Single Layer Metasurface

Contact Info

Product

Resources

About