Electromagnetic Wave Control Device Laboratory
in Nagaoka University of Technology

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Peer-Reviewed Papers
76) T. Sasaki, H. Okuyama, M. Sakamoto, K. Noda, H. Okamoto, N. Kawatsuki, and H. Ono,
"Twisted nematic liquid crystal cells with rubbed poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) films for active polarization control of terahertz waves,"
J. Appl. Phys. 121, 143016 (2017).
75) M. Sakamoto, H. Yamaguchi, K. Noda,  T. Sasaki, N. Kawatsuki, and H. Ono,
"Reflectance dependencies of diffraction properties in Fabry-Perot liquid crystal polarization grating,"
Jpn. J. Appl. Phys. 56, 042501 (2017).
74) K. Noda, J. Matsubara, M. Sakamoto, T. Sasaki, N. Kawatsuki, K. Goto, and H. Ono,
"Arbitary patterned anisotropic diffractive optical elements using the galvanometer polarization drawing method: application in fabricating polarization-dependent liquid-crystal Fresnel lens cells,"
Appl. Opt. 56, 1302-1309 (2017).
73) K. Kawai, M. Sakamoto, K. Noda,  T. Sasaki, N. Kawatsuki, and H. Ono,
"Tunable dichroic polarization beam splitter created by one-step holographic photoalignment using four-beam polarization interferometry,"
J. Appl. Phys. 121, 013102 (2017).
72)
M. Sakamoto, N. Nakamoto, K. Noda,  T. Sasaki, N. Kawatsuki, and H. Ono,
"Polarization grating fabricated by recording a vector hologram between two orthogonally polarized vector vortex beams,"
J. Opt. Soc. Am. B 34, 263-269 (2017).
71) M. Sakamoto, T. Sasaki, T. M. Tien, K. Noda, N. Kawatsuki, and H. Ono,
"Flexible and achromatic generation of optical vortices by use of vector beam recorded functionalized liquid crystals,"
Appl. Opt. 55, 10427-10434 (2016).
70) T. Sasaki, R. Shimura, K. Kawai, M. Sakamoto, K. Noda, N. Kawatsuki, and H. Ono, "Thermally controllable chiral nematic vector gratings with holographically regulated photoalignment films,"
Appl. Phys. B 122, 276-1-6 (2016).
69) K. Kawai, M. Sakamoto, K. Noda, T. Sasaki, N. Kawatsuki, and H. Ono,
"Design and fabrication of a tunable wavelength-selective polarization grating,"
Appl. Opt. 55, 6269-6247 (2016).
68)
T. Sasaki, T. Shoho, T. M. Tien, K. Goto, M. Sakamoto, K. Noda, N. Kawatsuki, and H. Ono, "Photoalignment anchoring energy of photocrosslinkable liquid crystalline polymers doped in nematic liquid crystals,"
Opt. Mater. Express 6, 6269-6247 (2016).
67) T. Sasaki, T. Shoho, K. Goto, M. Sakamoto, K. Noda, N. Kawatsuki, and H. Ono,
"Polarization axis-selective realignment of a photoreactive liquid crystalline composite with homogeneous alignment,,h
Appl. Phys. A 122, 568-1-5 (2016).
66)
K. Kawai, M. Sakamoto, K. Noda, T. Sasaki, N. Kawatsuki, and H. Ono,
"Three-dimensionally modulated anisotropic structure for diffracctive optical elements created by one-step three-beam polarization holographic photoalignment,"
J. Appl. Phys. 119, 123102-1-5 (2016).
65) M. Sakamoto, H. Yamaguchi, K. Noda, T. Sasaki, N. Kawatsuki, and H. Ono,
"Holographic liquid crystal polarization grating with Fabry-Perot structure,h
Opt. Lett. 41, 1098-1101 (2016).
64)
M. Sakamoto, T. Sasaki, K. Noda, T. M. Tien, N. Kawatsuki, and H. Ono,
"Three-dimensional vecctor recording in polarization sensitive liquid crystal composites by using axisymmetrically polarized beam,"
Opt. Lett. 41, 642-645 (2016).
63) T. M. Tien, T. Sasaki, M. Sakamoto, K. Noda, N. Kawatsuki, and H. Ono,
"Three-dimensional vector holograms formed in twisted-nematic azo-dye-doped polymer liquid crystal composite,h
J. Opt. Soc. Am. B 33, 286-291 (2016).
62) T. Sasaki, R. Shimura, K. Kawai, K. Noda, M. Sakamoto, N. Kawatsuki, and H. Ono,
"Alignment structures and diffraction properties of chiral nematic liquid crystal cells with periodically patterned photoalignment films,h
Jpn. J. Appl. Phys. 55, 012001-1-5 (2016).
61) K. Kawai, T. Sasaki, M. Sakamoto, K. Noda, N. Kawatsuki, and H. Ono,
gDiffraction properties of a vector grating liquid crystal cell fabricated using a one-step exposure of a nonorthogonal elliptically polarized interference beam,h
J. Opt. Soc. Am. B 32, 2435-2440 (2015).
60) N. Kawatsuki, K. Miyake, H. Ikoma, M. Kondo, T. Sasaki, and H. Ono,
"In situ formation of photoalignable N-benzylideneaniline side groups and control of photinduced reorientation in polymethacrylate with 4-oxybenzaldehyde side groups and 4-methoxyanilline composite films,h
Polymer 77, 239-245 (2015).
59) T. Sasaki, T. Shoho, K. Goto, K. Noda, N. Kawatsuki, and H. Ono,
"Photoalignment and resulting holographic vector grating formation in composites of low molecular weight liquid crystals and photoreactive liquid crystalline polymers,h
Appl. Phys. B 120, 217-222 (2015).
58) K. Kawai, T. Sasaki, K. Noda, M. Sakamoto, N. Kawatsuki, and H. Ono,
"Holographic binary grating liquid crystal cells fabricatedd by one-step exposure of photocrosslinkable polymer liquid crystalline alignment substrates to a polarization interference ultraviolet beam,h
Appl. Opt. 54, 6010-6018 (2015).
57) I. Syazwani, M. Haruyama, H. Hachisuka, G. Sha, W. Kada, T. Sasaki, K. Miura, and O. Hanaizumi,
"Enhancement of optical transmittance of polymer-dipersed liquid crystal cells,h
Key Engineering Materials 643, 29-32 (2015).
56) T. Sasaki, K. Noda, N. Kawatsuki, and H. Ono,
"Universal polarization terahertz phase controllers using randomly aligned liquid crystal cells with graphene electrodes,h
Opt. Lett. 40, 1544-1547 (2015).
55) N. Kawatsuki, T. Washio, J. Kozuki, M. Kondo, T. Sasaki, and H. Ono,
gPhotoinduced orientation of photoresponsive copolymers with N-benzylideneaniline and nonphotoreactive mesogenic side groups,h
Polymer 56, 318-326 (2015).
54) K. Kawai, M. Kuzuwata, T. Sasaki, K. Noda, N. Kawatsuki, and H. Ono,
gBlazed vector grating liquid crystal cells with photocrosslinkable polymeric alignment films fabricated by one-step polarizer rotation method,h
Jpn. J. Appl. Phys. 53, 122601-1-6 (2014).
53) N. Kawatsuki, R. Hosoda, M. Kondo, T. Sasaki, and H. Ono,
gMolecularly oriented surface relief formation in polymethacrylates comprising N-benzylideneaniline derivative side groups,h
Jpn. J. Appl. Phys. 53, 128002-1-3 (2014).
52) M. Okada, R. Hosoda, M. Kondo, Y. Haruyama, T. Sasaki, H. Ono, N. Kawatsuki, and S. Matsui,
gMolecular orientation of a photoreactive liquid crystalline polymer induced by thermal nanoimprinting and graphoepitaxy,h
Microelectronic Engineering 123, 159-162 (2014).
51)
K. Kawai, T. Sasaki, K. Noda, N. Kawatsuki, and H. Ono,
gSimple fabrication of liquid crystalline grating cells with homogeneous and twisted nematic structure and effects of orientational relaxation on diffraction properties,h
Appl. Opt. 53, 3679-3686 (2014).
50)
T. Sasaki, T. Shoho, K. Kawai, K. Noda, N. Kawatsuki, and H. Ono,
gEffects of plasticizer on the transient diffraction properties of polarization holographic gratings made from polarization-sensitive polymeric films,h
Jpn. J. Appl. Phys. 53, 062601-1-4 (2014).
49)
T. Sasaki, T. Shoho, K. Noda, N. Kawatsuki, and H. Ono,
gTemporal characteristics of polarization holographic gratings formed in a photosensitive polymeric film containing N-benzylideneaniline derivative side groups,h
J. Appl. Phys. 115, 153102-1-5 (2014).
48)
K. Noda, K. Kawai, T. Sasaki, N. Kawatsuki, and H. Ono,
gMultilevel anisotropic diffractive optical elements fabricated by means of stepping photo-alignment technique using photo-cross-linkable polymer liquid crystals,h
Appl. Opt. 53, 2556-2561 (2014).
47)
H. Ono, M. Kuzuwata, T. Sasaki, K. Noda, N. Kawatsuki,
gBlazed vector gratings fabricated using photosensitive polymer liquid crystals and control of polarization diffraction,h
Appl. Phys. B 114, 567-571 (2014).
46)
T. Sasaki, M. Izawa, K. Noda, E. Nishioka, N. Kawatsuki, and H. Ono,
gTemporal formation of optical anisotropy and surface relief during polarization holographic recording in polymethylmethacrylate with azobenzene side groups,h
Appl. Phys. B 114, 373-380 (2014).
45)
H. Ono, R. Hasebe, T. Sasaki, K. Noda, and N. Kawatsuki,
gEffects of photocrosslinking on photoreactive properties in polymer-liquid crystal composites,h
Appl. Phys. A 114, 1353-1360 (2014).
44)
T. Sasaki, E. Nishioka, K. Noda, M. Kondo, N. Kawatsuki, and H. Ono,
gAnalysis of nonsinusoidal surface relief structures formed by elliptical polarization holography on azobenzene-containing polymeric films,h
Jpn. J. Appl. Phys. 53, 02BB06 (2014).
43)
T. Sasaki, T. Wada, K. Noda, N. Kawatsuki, and H. Ono,
gMerged vector gratings recorded in a photocrosslinkable polymer liquid crystal film for polarimetry,h
J. Appl. Phys. 115, 023110 (2014).
42) N. Kawatsuki, Hi. Matsushita, T. Washio, J. Kozuki, M. Kondo, T. Sasaki, and H. Ono,
gPhotoinduced orientation of photoresponsive polymers N-benzylideneaniline derivative side groups,h
Macromolecules 47, 324-332 (2014).
41) H. Ono, M. Nishi, T. Sasaki, K. Noda, M. Okada, S. Matsuki, and N. Kawatsuki,
gPolarization-sensitive diffraction in vector gratings combined with form birefringence in subwavelength-periodic structures fabricated by imprinting on polarization-sensitive liquid crystalline polymers,h
J. Opt. Soc. Am. B 31, 11-19 (2014).
40) T. Sasaki, K. Miura, O. Hanaizumi, N. Kawatsuki, and H. Ono,
gObservation of optical soliton-like propagation in dye-doped nematic liquid crystal with homogeneous alignment,h
Key Engineering Materials 596, 139-143 (2014).
39) M. Okada, Y. Haruyama, S. Matsui, E. Nishioka, R. Hosoda, M. Kondo, N. Kawatsuki, T. Sasaki, and H. Ono,
gReorientation of photoreactive liquid crystalline polymer pattern fabricated by hybrid nanoimprinting,h
J. Vac. Sci. Technol. B 31, 06FB04 (2013).
38) M. Okada, E. Nishioka, M. Kondo, Y. Haruyama, T. Sasaki, H. Ono, N. Kawatsuki, and S. Matsui,
gMolecular orientation of photoinduced liquid crystalline polymer with 3D structure fabricated by thermal nanoimprinting,h
J. Photopolym. Sci. Technol. 26, 83-85 (2013).
37) M. Okada, E.Nishioka, M. Kondo, Y. Haruyama, T. Sasaki, H. Ono, N. Kawatsuki, and S. Matsui,
gComparison molecular orientation of photoinduced liquid crystalline polymer induced by thermal nanoimprinting to that by graphoepitaxy,h
J. Photopolym. Sci. Technol. 26, 65-68 (2013).
36) N. Kawatsuki, H. Matsushita, M. Kondo, T. Sasaki, and H. Ono,
gPhotoinduced reorientation and polarization holography in a new photopolymer with 4-methoxy-N-benzylideneaniline side groups,h
APL Mater. 1, 022103 (2013).
35) H. Ono, R. Hasebe, T. Sasaki, K. Noda, and N. Kawatsuki,
gPhotorefractive effects in polymer dissolved liquid crystal composites doped with fullerene derivatives,h
Opt. Commun. 300, 210-214 (2013).
34) T. Sasaki, M. Kuzuwata, K. Noda, N. Kawatsuki, and H. Ono,
gLiquid crystal gratings with twisted alignment produced by one-step polarizer-rotation exposure on photocrosslinkable polymer liquid crystal films,h
Jpn. J. Appl. Phys. 52, 042503-1-6 (2013).
33) H. Ono, M. Izawa, T. Sasaki, K. Noda, E. Nishioka, and N. Kawatsuki,
gTransitional reorientation and rotation of molecules during vector holographic recording in azobenzene-containing polymeric films,h
Jpn. J. Appl. Phys. 52, 011602-1-5 (2013).
32) A. V. Umenyi, S. Kikuchi, T. Sasaki, K. Miura, and O. Hanaizumi,
gDesign and analysis of taper structure for light coupling into photonic crystal waveguides fabricated by Si-ion implantation,h
Key Engineering Materials 534, 162 (2013).
31) H. Ono, M. Nishi, T. Sasaki, K. Noda, M. Okada, S. Matsui, and N. Kawatsuki,
gHighly-controllable form birefringence in subwavelength-period grating structures fabricated by imprinting on polarization-sensitive liquid crystalline polymers,h
J. Opt. Soc. Am. B 29, 2386 (2012).
30) H. Ono, T. Matsumoto, T. Sasaki, K. Noda, R. Takahashi, E. Nishioka, and N. Kawatsuki,
gIntensity and polarization modulation holographic recordings and vector holograms using inhomogeneous polarized beams,h
Jpn. J. Appl. Phys. 51, 082501 (2012).
29) H. Ono, T. Matsumoto, T. Sasaki, and N. Kawatsuki,
gEffects of polarization azimuth of writing beams on diffraction properties in vector holograms using radially polarized light,h
Jpn. J. Appl. Phys. 51, 061601 (2012).
28) M. Kuzuwata, T. Sasaki, N. Kawatsuki, and H. Ono,
gFabrication of twisted nematic structure and vector grating cells by one-step exposure on photocrosslinkable polymer liquid crystals,h
Opt. Lett. 37, 1115-1117 (2012).
27) K. Miura, Y. Machida, M. Uehara, H. Kiryu, Y. Ozawa, T. Sasaki, O. Hanaizumi, T. Satoh, Y. Ishii, M. Kohka, K. Takano, T. Ohkubo, A. Yamazaki, W. Kada, A. Yokoyama, T. Kamiya, and H. Nishikawa,
gFabrication of polymer optical waveguides for the 1.5-mm band using focused proton beam,h
Key Engineering Materials 497, 147-150 (2012).
26) T. Sasaki, K. Miura, H. Ono, and O. Hanaizumi,
gOptically controlled light propagation in dye-doped nematic liquid crystals with homogeneous alignment,h
Key Engineering Materials 497, 142-146 (2012).
25) T. Sasaki, K. Miura, O. Hanaizumi, and H. Ono,
gCoupled-wave analysis of vector holograms. 3. Effects of intrinsic distribution of optical axis in anisotropic media,h
Appl. Opt. 50, 6717-6722 (2011).
24) A. Emoto, T. Wada, T. Shioda, T. Sasaki, S. Manabe, N. Kawatsuki, and H. Ono,
gVector gratings fabricated by polarizer rotation exposure to hydrogen-bonded liquid crystalline polymers,h
Jpn. J. Appl. Phys. 50, 032502 (2011).
23) T. Sasaki, K. Miura, O. Hanaizumi, A. Emoto, and H. Ono,
gCoupled-wave analysis of vector holograms. 2. Reflective gratings formed in photoanisotropic medium with uniaxial birefringence,h
Appl. Opt. 50, 454 (2011).
22) T. Sasaki, Y. Kondoh, O. Hanaizumi, and M. Goto,
gA novel thermoelectric system with conductive metal rods and its effective Seebeck coefficients,h
Key Engineering Materials 459, 235-238 (2011).
21) A. Emoto, S. B. Baharim, T. Sasaki, T. Shioda, A. Ogiwara, and H. Ono,
gChronological investigations of Raman-Nath diffraction grating inscribed by direct laser writing in photoreactive monomer base mixtures,h
Jpn. J. Appl. Phys. 49, 122502 (2010).
20) T. Sasaki, K. Miura, O. Hanaizumi, A. Emoto, and H. Ono,
gCoupled-wave analysis of vector holograms: effects of modulation depth of anisotropic phase retardation,h
Appl. Opt. 49, 5205 (2010).
19) T. Sasaki, O. Hanaizumi, T. Iwato, A. Emoto, N. Kawatsuki, and H. Ono,
gEffects of recording wavelength on three-dimensional vector holograms in photoreactive liquid crystal composites,h
Opt. Commun. 283, 528 (2010).
18) H. Ono, K. Suzuki, T. Sasaki, T. Iwato, A. Emoto, T. Shioda, and N. Kawatsuki,
gReconstruction of polarized optical images in two- and three-dimensional vector holograms,h
J. Appl. Phys. 106, 083109 (2009).
17) T. Sasaki, H. Ono, and N. Kawatsuki,
gThree-dimensional vector holograms in photoreactive polymer dissolved liquid crystal composite,h
Opt. Rev. 16, 338 (2009).
16) H. Ono, H. Wakabayashi, T. Sasaki, A. Emoto, T. Shioda, and N. Kawatsuki,
gVector holograms using radially polarized light,h
Appl. Phys. Lett. 94, 071114 (2009).
15) T. Sasaki, A. Emoto, T. Shioda, and H. Ono,
gTransmission and reflection gratings formed in azo-dye-doped chiral nematic liquid crystals,h
Appl. Phys. Lett. 94, 023303 (2009)
.
14) T. Sasaki, H, Ono, and N. Kawatsuki,
gAnisotropic photonic structures induced by three-dimensional vector holography in dye-doped liquid crystals,h
J. Appl. Phys. 104, 043524 (2008).
13) H. Ono, N. R. Mohamad, T. Sasaki, N. Kawatsuki, and A. Ogiwara,
gRotation of director during holographic recording in polymer dispersed liquid crystals,h
Liq. Cryst. 35, 633 (2008).
12) T. Sasaki, H. Ono, and N. Kawatsuki,
gThree-dimensional vector holograms in anisotropic photoreactive liquid-crystal composites,h
Appl. Opt. 47, 2192 (2008).
11) H. Ono, T. Sasaki, and N. Kawatsuki,
gTwisted molecular reorientation by axis-selective surface photoreaction and subsequent self-organization in photocrosslinkable polymer liquid crystals,h
Jpn. J. Appl. Phys. 47, 1642 (2008).
10) T. Sasaki, H. Ono, and N. Kawatsuki,
gAnisotropic gratings formed by photoinduced molecular reorientation in dye-doped polymer-dissolved liquid crystal composites,h
Jpn. J. Appl. Phys. 47, 441 (2008).
9) T. Sasaki, H. Ono, and N. Kawatsuki,
gFunctionalized polarization gratings in azo-dye-doped polymer films,h
Mol. Cryst. Liq. Cryst. 472, 131 (2007).
8) T. Sasaki, H, Ono, and N. Kawatsuki,
gHolographic twisted nematic gratings recorded in azo-dye-doped liquid crystals with homogeneous alignment,h
Jpn. J. Appl. Phys. 46, 1579 (2007).
7) T. Sasaki, H. Ono, N. Kawatsuki, and M. Kuwabara,
gDiffraction properties of nematic phase gratings with photoregulated liquid crystal cells,h
Jpn. J. Appl. Phys. 46, 698 (2007).
6) N. Kawatsuki, K. Hamano, H. Ono, T. Sasaki, and K. Goto,
gMolecular-oriented photoalignment layer for liquid crystals,h
Jpn. J. Appl. Phys. 46, 339 (2007).
5) H. Ono, T. Sasaki, A. Emoto, E. Uchida, and N. Kawatsuki,
gTwisted phase gratings induced by photoregulated mesogenic molecules on the surface of photoreactive polymer liquid crystal film,h
Appl. Phys. Lett. 89, 261918 (2006).
4) T. Sasaki, A. Hatayama, A. Emoto, H. Ono, and N. Kawatsuki,
gSimple detection of light polarization by using crossed polarization gratings,h
J. Appl. Phys. 100, 063502 (2006).
3) T. Sasaki, H. Ono, N. Kawatsuki, and M. Kuwabara,
gLiquid crystal phase gratings using photoregulated photocrosslinkable polymer liquid crystals,h
Appl. Phys. Lett. 87, 161112 (2005).
2) H. Ono, T. Sasaki, A. Emoto, N. Kawatsuki, and E. Uchida,
gPolarization gratings in twisted-nematic liquid crystal composites doped with azobenzene dye,h
Opt. Lett. 30, 1950 (2005).
1) N. Kawatsuki, M. Kuwabara, Y. Matsuura, T. Sasaki, and H. Ono,
gPhotoalignment control of liquid crystals on photo-cross-linkable polymer liquid crystal film,h
J. Photopolym. Sci. Technol. 18, 17 (2005).


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