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035			_a(RuTPU)RU\TPU\network\34897
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090			_a663727
100			_a20210302a2020 k y0engy50 ba
101	0		_aeng
102			_aGB
135			_adrcn ---uucaa
181		0	_ai
182		0	_ab
200	1		_aTemperature mediated ‘photonic hook’ nanoparticle manipulator with pulsed illumination _fM. Spector, A. S. Ang, O. V. Minin [et al.]
203			_aText _celectronic
300			_aTitle screen
320			_a[References: 44 tit.]
330			_aOptical forces applied on an object or cell in a non-destructive manner have revolutionised scientific instruments. Optical tweezers and atomic traps are just two representative examples. Curved forces such as photonic hooks are of particular interest for non-destructive manipulation; however, they are extremely weak in low-contrast media. Here, for the first time, we report the amplification of optical forces generated by a photonic hook via pulsed illumination mediated by temperature effects. We show that the optical force generated by the photonic hook subjected to illumination by an incident Gaussian pulse is significantly larger than the optical force generated by the photonic hook subjected to a continuous wave. We notice that under the applied photonic hook generated by a Gaussian beam, a spherical gold nanoparticle experiences a variation in its lattice temperature of ?Tl ~ 2–4 K, leading to high index resolution. We envision that heat-associated effects can be further mitigated to achieve temperature assisted photonic hook manipulation of nanoparticles in a controllable manner by taking into account the thermo-optical properties of metals. Our findings are particularly important for tracing objects in low-contrast environments, such as optomechanically controlled drug delivery with nanoparticles in intercellular and intracellular media or cellular differentiation, to list a few examples.
461			_tNanoscale Advances
463			_tVol. 2, iss. 6 _v[P. 2595-2601] _d2020
610	1		_aэлектронный ресурс
610	1		_aтруды учёных ТПУ
701		1	_aSpector _bM. _gMarat
701		1	_aAng _bA. S. _gAngeleene
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 _cProfessor of Tomsk Polytechnic University, Doctor of technical sciences _f1960- _gIgor Vladilenovich _2stltpush _3(RuTPU)RU\TPU\pers\37571
701		1	_aKarabchevsky _bA.
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 _c20210409 _gRCR
856	4		_uhttps://doi.org/10.1039/C9NA00759H
942			_cCF