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From laser ultrasonics to optical manipulation
Babnik, Aleš (Author), Požar, Tomaž (Author), Možina, Janez (Author)

URLURL - Presentation file, Visit https://www.osapublishing.org/vjbo/virtual_issue.cfm?vid=290 This link opens in a new window

Abstract
During the interaction of a laser pulse with the surface of a solid object, the object always gains momentum. The delivered force impulse is manifested as propulsion. Initially, the motion of the object is composed of elastic waves that carry and redistribute the acquired momentum as they propagate and reflect within the solid. Even though only ablation- and light-pressure-induced mechanical waves are involved in propulsion, they are always accompanied by the ubiquitous thermoelastic waves. This paper describes 1D elastodynamics of pulsed optical manipulation and presents two diametrical experimental observations of elastic waves generated in the confined ablation and in the radiation pressure regime.

Language:English
Keywords:optodynamics, laser ultrasonics, optical manipulation, light pressure, elastic waves
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Year:2015
Number of pages:str. 7978-7990
Numbering:Vol. 23, iss. 6
UDC:535:681.78(045)
ISSN on article:1094-4087
DOI:10.1364/OE.23.007978 Link is opened in a new window
COBISS.SI-ID:13926427 Link is opened in a new window
Views:1298
Downloads:355
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Record is a part of a journal

Title:Optics express
Shortened title:Opt. express
Publisher:Optical Society of America
ISSN:1094-4087
COBISS.SI-ID:8636438 This link opens in a new window

Secondary language

Language:Unknown
Title:Od laserskega ultrazvoka do optične manipulacije
Abstract:
Med interakcijo laserskega bliska s površino trdnega predmeta, predmet vedno prejme gibalno količino. Sunek sile, ki pri tem natopi, služi kot pogon. Sprva je gibanje predmeta sestavljeno iz elastičnih valov, ki s seboj nosijo preneseno gibalno količino in jo, medtem ko se po njem širijo in odbijajo, po predmetu tudi prerazporejajo. Čeprav pri pogonu sodelujejo le ablacijski in svetlobnotlačni mehanski valovi, jih vedno spremljajo tudi vseprisotni termoelastični valovi. Ta članek opisuje 1D elastodinamiko optične manipulacije z laserskimi bliski ter opisuje dve diametralni eksperimentalni opazovanji, prvo v režimu omejene ablacije in drugo v režimu sevalnega tlaka.

Keywords:optodinamika, laserski ultrazvok, optična manipulacija, svetlobni tlak, elastični valovi

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