Drag optical force due to a drift-current bias of graphene

2020 ◽  
Author(s):  
Muzzamal Shaukat ◽  
Mário G. Silveirinha
Keyword(s):  
Optical Force ◽  
Drift Current

scholarly journals A Nanoscale Photonic Crystal Cavity Optomechanical System for Ultrasensitive Motion Sensing

Crystals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 462
Author(s):  
Ji Xia ◽  
Fuyin Wang ◽  
Chunyan Cao ◽  
Zhengliang Hu ◽  
Heng Yang ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Optical Cavity ◽  
Optical Quality ◽  
Optical Force ◽  
Mechanical Oscillator ◽  
Maximum Displacement ◽  
Optomechanical System ◽  
High Optical Quality ◽  
Hybrid Platform ◽  
Optomechanical Coupling

Optomechanical nanocavities open a new hybrid platform such that the interaction between an optical cavity and mechanical oscillator can be achieved on a nanophotonic scale. Owing to attractive advantages such as ultrasmall mass, high optical quality, small mode volume and flexible mechanics, a pair of coupled photonic crystal nanobeam (PCN) cavities are utilized in this paper to establish an optomechanical nanosystem, thus enabling strong optomechanical coupling effects. In coupled PCN cavities, one nanobeam with a mass meff~3 pg works as an in-plane movable mechanical oscillator at a fundamental frequency of . The other nanobeam couples light to excite optical fundamental supermodes at and 1554.464 nm with a larger than 4 × 104. Because of the optomechanical backaction arising from an optical force, abundant optomechanical phenomena in the unresolved sideband are observed in the movable nanobeam. Moreover, benefiting from the in-plane movement of the flexible nanobeam, we achieved a maximum displacement of the movable nanobeam as 1468 . These characteristics indicate that this optomechanical nanocavity is capable of ultrasensitive motion measurements.

Optical force-based detection of splay and twist viscoelasticity of CCN47 across the Nematic-to-Smectic A transition

2021 ◽  
Vol 329 ◽  
pp. 115520
Author(s):  
Liana Lucchetti ◽  
Giovanni Nava ◽  
Raouf Barboza ◽  
Fabrizio Ciciulla ◽  
Tommaso Bellini
Keyword(s):  
Optical Force ◽  
Smectic A

scholarly journals Plasmonic linear nanomotor using lateral optical forces

2020 ◽  
Vol 6 (45) ◽  
pp. eabc3726
Author(s):  
Yoshito Y. Tanaka ◽  
Pablo Albella ◽  
Mohsen Rahmani ◽  
Vincenzo Giannini ◽  
Stefan A. Maier ◽  
...  
Keyword(s):  
Laser Beam ◽  
Incident Light ◽  
Lateral Force ◽  
Diffraction Limit ◽  
Propagation Direction ◽  
Optical Force ◽  
Optical Forces ◽  
Incident Laser ◽  
New Class ◽  
Force Direction

Optical force is a powerful tool to actuate micromachines. Conventional approaches often require focusing and steering an incident laser beam, resulting in a bottleneck for the integration of the optically actuated machines. Here, we propose a linear nanomotor based on a plasmonic particle that generates, even when illuminated with a plane wave, a lateral optical force due to its directional side scattering. This force direction is determined by the orientation of the nanoparticle rather than a field gradient or propagation direction of the incident light. We demonstrate the arrangements of the particles allow controlling the lateral force distributions with the resolution beyond the diffraction limit, which can produce movements, as designed, of microobjects in which they are embedded without shaping and steering the laser beam. Our nanomotor to engineer the experienced force can open the door to a new class of micro/nanomechanical devices that can be entirely operated by light.

scholarly journals Customizable Optical Force Sensor for Fast Prototyping and Cost-Effective Applications

Sensors ◽  
2018 ◽  
Vol 18 (2) ◽  
pp. 493 ◽  
Author(s):  
Jorge Díez ◽  
José Catalán ◽  
Andrea Blanco ◽  
José García-Perez ◽  
Francisco Badesa ◽  
...  
Keyword(s):  
Cost Effective ◽  
Force Sensor ◽  
Optical Force ◽  
Fast Prototyping

Super resolution mapping of the near optical field and the gradient optical force

2013 ◽  
Author(s):  
Ryan M. Gelfand ◽  
Alireza Bonakdar ◽  
O. Gokalp Memis ◽  
Hooman Mohseni
Keyword(s):  
Super Resolution ◽  
Optical Field ◽  
Optical Force ◽  
Resolution Mapping ◽  
Super Resolution Mapping

Label-Free Detection of Bacillus anthracis Spore Uptake in Macrophage Cells Using Analytical Optical Force Measurements

2017 ◽  
Vol 89 (19) ◽  
pp. 10296-10302 ◽  
Author(s):  
Colin G. Hebert ◽  
Sean Hart ◽  
Tomasz A. Leski ◽  
Alex Terray ◽  
Qin Lu
Keyword(s):  
Bacillus Anthracis ◽  
Optical Force ◽  
Label Free ◽  
Force Measurements ◽  
Macrophage Cells ◽  
Label Free Detection
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