Kotaro Kawai

发表

Trifocal lens system with liquid crystal Fresnel lens

H. Ono, N. Kawatsuki, M. Sakamoto, 2018, Japanese Journal of Applied Physics.

Arbitrary patterned anisotropic diffractive optical elements using the galvanometer polarization drawing method: application in fabricating polarization-dependent liquid-crystal Fresnel lens cells

H. Ono, N. Kawatsuki, M. Sakamoto, 2017 .

Tunable dichroic polarization beam splitter created by one-step holographic photoalignment using four-beam polarization interferometry

H. Ono, N. Kawatsuki, M. Sakamoto, 2017 .

Three-dimensionally modulated anisotropic structure for diffractive optical elements created by one-step three-beam polarization holographic photoalignment

H. Ono, N. Kawatsuki, M. Sakamoto, 2016 .

Design and fabrication of a tunable wavelength-selective polarization grating.

H. Ono, N. Kawatsuki, M. Sakamoto, 2016, Applied optics.

Multilevel anisotropic diffractive optical elements fabricated by means of stepping photo-alignment technique using photo-cross-linkable polymer liquid crystals.

H. Ono, N. Kawatsuki, Kohei Noda, 2014, Applied optics.

Alignment structures and diffraction properties of chiral nematic liquid crystal cells with periodically patterned photoalignment films

H. Ono, N. Kawatsuki, M. Sakamoto, 2015 .

Polarization grating fabricated by recording a vector hologram between two orthogonally polarized vector vortex beams

H. Ono, N. Kawatsuki, M. Sakamoto, 2017 .

Dynamic control of diffraction angle and separation properties of wavelength and polarization by quaternary liquid crystal grating.

H. Ono, N. Kawatsuki, M. Sakamoto, 2017, Applied optics.

Diffraction properties of a vector grating liquid crystal cell fabricated using a one-step exposure of a nonorthogonal elliptically polarized interference beam

H. Ono, N. Kawatsuki, M. Sakamoto, 2015 .

Holographic binary grating liquid crystal cells fabricated by one-step exposure of photocrosslinkable polymer liquid crystalline alignment substrates to a polarization interference ultraviolet beam.

H. Ono, N. Kawatsuki, M. Sakamoto, 2015, Applied optics.

Simple fabrication of liquid crystalline grating cells with homogeneous and twisted nematic structures and effects of orientational relaxation on diffraction properties.

H. Ono, N. Kawatsuki, Kohei Noda, 2014, Applied optics.

Mirror of volume functionals on manifolds with special holonomy

Kotaro Kawai, Hikaru Yamamoto, 2021, Advances in Mathematics.

Deformation Theory of Deformed Hermitian Yang–Mills Connections and Deformed Donaldson–Thomas Connections

Kotaro Kawai, Hikaru Yamamoto, 2020, The Journal of Geometric Analysis.

SOME ASSOCIATIVE SUBMANIFOLDS OF THE SQUASHED 7-SPHERE

Kotaro Kawai, 2014, 1411.5840.

Torus invariant special Lagrangian submanifolds in the canonical bundle of toric positive Kähler Einstein manifolds

Kotaro Kawai, 2011 .

Calibrated submanifolds and reductions of $G_{2}$-manifolds

Kotaro Kawai, 2015 .

Frölicher–Nijenhuis Bracket on Manifolds with Special Holonomy

H. Lê, Kotaro Kawai, L. Schwachhofer, 2018, Lectures and Surveys on G2-Manifolds and Related Topics.

Effects of plasticizer on the transient diffraction properties of polarization holographic gratings made from polarization-sensitive polymeric films

Hiroshi Ono, Nobuhiro Kawatsuki, Kohei Noda, 2014 .

Construction of Coassociative submanifolds in $\mathbb{R}^{7}$ and $\Lambda^{2}_{-} S^{4}$ with symmetries

Kotaro Kawai, 2013 .

Cohomogeneity One Coassociative Submanifolds in the Bundle of Anti-self-dual 2-forms over the 4-sphere

Kotaro Kawai, 2013, 1305.2786.

Conformal transformations of the pseudo‐Riemannian metric of a homogeneous pair

Kotaro Kawai, 2019, Journal of the London Mathematical Society.

One-Step Holographic Photoalignment for Twisted Nematic Liquid Crystal Gratings

H. Ono, M. Sakamoto, Kohei Noda, 2017 .

Thermally controllable chiral nematic vector gratings with holographically regulated photoalignment films

H. Ono, N. Kawatsuki, M. Sakamoto, 2016 .

Fabrication of Vector Grating Liquid Crystal Cell with Twisted and Homogeneous Alignment by One-Step Exposure to Two-Wave Intensity and Polarization Modulated Interference UV Beam

Kotaro Kawai, 2015 .

Blazed vector grating liquid crystal cells with photocrosslinkable polymeric alignment films fabricated by one-step polarizer rotation method

H. Ono, N. Kawatsuki, Kohei Noda, 2014 .

Diffraction properties of liquid crystal cell with beat structure formed by photoalignment substrates.

H. Ono, N. Kawatsuki, M. Sakamoto, 2019, Applied optics.

Characterization of structural and mechanical properties of DLC films deposited on the surface of minute-scale 3D objects: Comparison of PECVD and FCVA deposition technique

H. Akasaka, Kotaro Kawai, N. Ohtake, 2023, Surface and Coatings Technology.

Deformations of homogeneous associative submanifolds in nearly parallel $G_2$-manifolds

Kotaro Kawai, 2014, 1407.8046.

Almost formality of manifolds of low dimension

D. Fiorenza, H. Lê, Kotaro Kawai, 2019, ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE.

Deformation Theory of Deformed Donaldson–Thomas Connections for $${\text {Spin}(7)}$$-manifolds

Kotaro Kawai, Hikaru Yamamoto, 2021, The Journal of Geometric Analysis.

The real Fourier–Mukai transform of Cayley cycles

Kotaro Kawai, Hikaru Yamamoto, 2021, Pure and Applied Mathematics Quarterly.

The Frölicher–Nijenhuis bracket and the geometry of $$G_2$$G2-and Spin(7)-manifolds

Lorenz Schwachhöfer, H. Lê, Kotaro Kawai, 2018 .