| dc.contributor | RUBEN RAMOS GARCIA | |
| dc.contributor | JULIO CESAR RAMIREZ SAN JUAN | |
| dc.creator | JUAN PABLO PADILLA MARTINEZ | |
| dc.date | 2013-04 | |
| dc.date.accessioned | 2023-07-25T16:21:11Z | |
| dc.date.available | 2023-07-25T16:21:11Z | |
| dc.identifier | http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/239 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/7805459 | |
| dc.description | Cavitation can be defined as the formation, growth and implosion of vapor bubbles
within a liquid. The shock wave produced at the moment of the collapse is
responsible for the damage on nearby surfaces, such as ship propellers or hydraulic
machinery. This phenomenon has been studied by several scientists due to the
potentials applications that it offers in different disciplines. The most common
techniques to generate cavitation bubbles under a controlled environment involve
the use of pulsed lasers, electrical discharge or ultrasound probes. However, these
methods are either too expensive or intrusive. In contrast, cavitation bubbles may
also be produced with inexpensive, low-power continuous wave (CW) lasers, so long
as they are focused in strongly absorbing liquids, this approach leads to the so called
thermocavitation.
In the present thesis, I propose to study again some of the physical mechanisms
of thermocavitation reported by Rastopov and to explore feasible applications of the
shock waves generated by the collapse of thermocavitation bubbles as a method to:
• To produce damage in materials as hard as titanium and indium tin oxide thin
films. This damage was in the form of micro-holes, which could be used for
micrometric light sources or spatial filters.
• For tissue ablation; mainly to pierce the stratum corneum and thus enhance
transdermal drug delivery.
• If the thermocavitation bubble is generated within a highly absorbing droplet,
the shock wave that is produced upon the bubble collapse overcomes the
droplet surface tension and a long and fast moving liquid jet is expelled
through the liquid-air interface. Therefore, thermocavitation induced in absorbing
droplets could lead to an alternative jet generator.
In general, from an application point of view, this combination of CW laser
and absorbing solution is in fact quite convenient because it would reduce the cost
relative to other more sophisticated methods. | |
| dc.format | application/pdf | |
| dc.language | spa | |
| dc.publisher | Instituto Nacional de Astrofísica, Óptica y Electrónica | |
| dc.relation | citation:Padilla-Martinez J.P. | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.rights | http://creativecommons.org/licenses/by-nc-nd/4.0 | |
| dc.subject | info:eu-repo/classification/Cavitación/Cavitation | |
| dc.subject | info:eu-repo/classification/Medios absorbentes/Absorbing media | |
| dc.subject | info:eu-repo/classification/Coeficientes de absorción/Absorbing coefficients | |
| dc.subject | info:eu-repo/classification/Efectos de ondas acústicas/Acoustic wave effects | |
| dc.subject | info:eu-repo/classification/Aplicaciones acústicas/Acoustic applications | |
| dc.subject | info:eu-repo/classification/cti/1 | |
| dc.subject | info:eu-repo/classification/cti/22 | |
| dc.subject | info:eu-repo/classification/cti/2209 | |
| dc.subject | info:eu-repo/classification/cti/2209 | |
| dc.title | Thermocavitation: A novel optical cavitation method | |
| dc.type | info:eu-repo/semantics/doctoralThesis | |
| dc.type | info:eu-repo/semantics/acceptedVersion | |
| dc.audience | students | |
| dc.audience | researchers | |
| dc.audience | generalPublic | |
