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101 0 _aeng
102 _aGB
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181 0 _ai
182 0 _ab
200 1 _aSelf-images contrast enhancement for displacement Talbot lithography by means of composite mesoscale amplitude-phase masks
_fYu. E. Geints, O. V. Minin, I. V. Minin, Yu. E. Zemlyanov
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 39 tit.]
330 _aWe propose a new design of composite wavelength-scale amplitude-phase diffraction grating as applied to the displacement Talbot lithography. The grating is composed of a conventional metal amplitude binary mask with superposed dielectric phase steps and provides for manyfold optical contrast enhancement of the integrated 'Talbot carpet' as opposed to the amplitude and phase masks purely. By means of the finite element calculations, we analyze the spatial field structure in the proposed gratings with different geometric ridge shapes and show that due to Mie-type resonances excitation the semielliptical dielectric steps in the combination with metal amplitude mask demonstrate excellent spatial resolution (~${\lambda }/4$) and highest optical contrast (~22 dB) of integrated Talbot self-images.
461 _tJournal of Optics
463 _tVol. 22, iss. 1
_v[015002, 9 p.]
_d2020
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aконтрастность
610 1 _aизображения
701 1 _aGeints
_bYu. E.
_gYuri
701 1 _aMinin
_bO. V.
_cphysicist
_cprofessor of Tomsk Polytechnic University, Doctor of technical sciences
_f1960-
_gOleg Vladilenovich
_2stltpush
_3(RuTPU)RU\TPU\pers\44941
701 1 _aMinin
_bI. V.
_cphysicist
_cSenior researcher of Tomsk Polytechnic University, Doctor of technical sciences
_f1960-
_gIgor Vladilenovich
_2stltpush
_3(RuTPU)RU\TPU\pers\37571
701 1 _aZemlyanov
_bYu. E.
_gAlexander
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИнженерная школа неразрушающего контроля и безопасности
_bОтделение электронной инженерии
_h7977
_2stltpush
_3(RuTPU)RU\TPU\col\23507
801 2 _aRU
_b63413507
_c20200520
_gRCR
856 4 _uhttps://doi.org/10.1088/2040-8986/ab5b7d
942 _cCF