Coherent oscillations of a birefringent microsphere in vacuum optical traps

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F20%3A00618908" target="_blank" >RIV/68081731:_____/20:00618908 - isvavai.cz</a>
Result on the web
<a href="https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11522/2573530/Coherent-oscillations-of-a-birefringent-microsphere-in-vacuum-optical-traps/10.1117/12.2573530.short" target="_blank" >https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11522/2573530/Coherent-oscillations-of-a-birefringent-microsphere-in-vacuum-optical-traps/10.1117/12.2573530.short</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.2573530" target="_blank" >10.1117/12.2573530</a>

Result language
angličtina
Original language name
Coherent oscillations of a birefringent microsphere in vacuum optical traps
Original language description
When particles are held in optical tweezers, we assume that they are in thermal equilibrium, in which the equipartition of energy determines the position variance of optically trapped spheres. Here we show that this condition only holds for very high symmetry cases, e.g. perfectly isotropic particles in unaberrated, linearly polarized Gaussian traps. We report an experimental observation that when a birefringent microsphere is held in a linearly polarised Gaussian optical trap in vacuum, spontaneous oscillations emerge that grow rapidly in amplitude and become increasingly coherent as the air pressure is reduced. Furthermore, when parametrically driven, these self-sustained oscillators exhibit an ultrahigh mechanical quality factor > 2 x 10(8), which can be highly sensitive to external purtabations.
Czech name
—
Czech description
—

Project
<a href="/en/project/GA19-17765S" target="_blank" >GA19-17765S: Multidimensional nonlinear optomechanics of levitated nanosystems</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Optical Manipulation and Structured Materials Conference 2020
ISBN
978-1-5106-3851-8
ISSN
0277-786X
e-ISSN
—
Number of pages
2
Pages from-to
115221C
Publisher name
SPIE
Place of publication
Bellingham
Event location
Yokohama
Event date
Apr 20, 2020
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000695448900046

Similar results(10)