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100 _a20210122a2020 k y0engy50 ba
101 0 _aeng
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aSpecular-reflection photonic nanojet: Physical basis and optical trapping application
_fI. V. Minin, Yu. E. Geynts, A. A. Zemlyanov, O. V. Minin
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 58 tit.]
330 _aA specular-reflection photonic nanojet (s-PNJ) is a specific type of optical near-field subwavelength spatial localization originated from the constructive interference of direct and backward propagated optical waves focused by a transparent dielectric microparticle located near a flat reflecting mirror. The unique property of s-PNJ is reported for maintaining its spatial localization and high intensity when using microparticles with high refractive index contrast when a regular photonic nanojet is not formed. The physical principles of obtaining subwavelength optical focus in the specular-reflection mode of a PNJ are numerically studied and a comparative analysis of jet parameters obtained by the traditional schemes without and with reflection is carried out. Based on the s-PNJ, the physical concept of an optical tweezer integrated into the microfluidic device is proposed provided by the calculations of optical trapping forces of the trial gold nanosphere. Importantly, such an optical trap shows twice as high stability to Brownian motion of the captured nano-bead as compared to the conventional nanojet-based traps and can be relatively easy implemented.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tOptics Express
463 _tVol. 28, iss. 15
_v[P. 22690-22704]
_d2020
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aизлучения
610 1 _aфотонные наноструи
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 _aGeynts
_bYu. E.
_gYury Elmarovich
701 1 _aZemlyanov
_bA. A.
_gAleksandr Anatoljevich
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
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
_c20210122
_gRCR
856 4 _uhttps://doi.org/10.1364/OE.400460
942 _cCF