Dynamical back-action at 5.5 GHz in a corrugated optomechanical beam

Journal Article · Mon Dec 15 00:00:00 EST 2014 · AIP Advances

DOI:https://doi.org/10.1063/1.4902171· OSTI ID:22420186

Gomis-Bresco, J.; Alzina, F. ^[1]; El-Jallal, S. ^[2]; Oudich, M.; Pennec, Y.; Djafari-Rouhani, B. ^[2]; Pitanti, A. ^[3]; Capuj, N. ^[4]; Tredicucci, A. ^[3]; Griol, A.; Martínez, A. ^[5]; Sotomayor Torres, C. M. ^[1]

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1. Catalan Institute of Nanoscience and Nanotechnology, Campus UAB, Edifici ICN2, 08193 Bellaterra (Spain)
2. IEMN, Universite de Lille 1, Villeneuve d’Ascq (France)
3. NEST, Istituto Nanoscienze – CNR and Scuola Normale Superiore, Piazza San Silvestro 12, Pisa, I-56127 (Italy)
4. Depto. Física, Universidad de la Laguna, 38206 (Spain)
5. Nanophotonics Technology Center, Universitat Politècnica de València, Valencia (Spain)

We report on the optomechanical properties of a breathing mechanical mode oscillating at 5.5 GHz in a 1D corrugated Si nanobeam. This mode has an experimental single-particle optomechanical coupling rate of |g{sub o,OM}| = 1.8 MHz (|g{sub o,OM}|/2π = 0.3 MHz) and shows strong dynamical back-action effects at room temperature. The geometrical flexibility of the unit-cell would lend itself to further engineering of the cavity region to localize the mode within the full phononic band-gap present at 4 GHz while keeping high g{sub o,OM} values. This would lead to longer lifetimes at cryogenic temperatures, due to the suppression of acoustic leakage.

• OSTI ID: 22420186
• Journal Information: AIP Advances, Vol. 4, Issue 12; Other Information: (c) 2014 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 2158-3226
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COUPLING
FLEXIBILITY
GHZ RANGE
LEAKS
MHZ RANGE
PARTICLES
RESPIRATION
TEMPERATURE RANGE 0273-0400 K