scholarly journals Morphology-dependent resonance of the optical forces on Mie particles in an Airy beam

2013 ◽  
Vol 21 (5) ◽  
pp. 6186 ◽  
Author(s):  
Yang Yang ◽  
Wei-Ping Zang ◽  
Zi-Yu Zhao ◽  
Jian-Guo Tian
Keyword(s):  
Optical Forces ◽  
Airy Beam

scholarly journals Rigorous full-wave calculation of optical forces on dielectric and metallic microparticles immersed in a vector Airy beam

2017 ◽  
Vol 25 (19) ◽  
pp. 23238 ◽  
Author(s):  
Wanli Lu ◽  
Huajin Chen ◽  
Shiyang Liu ◽  
Zhifang Lin
Keyword(s):  
Optical Forces ◽  
Airy Beam ◽  
Full Wave ◽  
Wave Calculation

scholarly journals Ray optics analysis of optical forces on a microsphere in a (2 + 1)D Airy beam

OSA Continuum ◽  
2019 ◽  
Vol 2 (2) ◽  
pp. 378 ◽  
Author(s):  
Shuhe Zhang ◽  
Jinhua Zhou ◽  
Yu-Xuan Ren
Keyword(s):  
Optical Forces ◽  
Ray Optics ◽  
Airy Beam

Wideband mm-wave Non-diffracting Airy Beam Forming

2018 ◽  
Author(s):  
R. Kadlimatti ◽  
H. Gaddam ◽  
H. Larocque ◽  
E. Karimi ◽  
R.W. Boyd ◽  
...  
Keyword(s):  
Beam Forming ◽  
Airy Beam

scholarly journals Achromatic terahertz Airy beam generation with dielectric metasurfaces

Nanophotonics ◽  
2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Qingqing Cheng ◽  
Juncheng Wang ◽  
Ling Ma ◽  
Zhixiong Shen ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Biomedical Imaging ◽  
Frequency Dispersion ◽  
Light Sheet ◽  
Photonic Devices ◽  
Self Healing ◽  
Beam Focusing ◽  
Light Sheet Microscopy ◽  
Airy Beam ◽  
Potential Applications ◽  
Airy Beams

AbstractAiry beams exhibit intriguing properties such as nonspreading, self-bending, and self-healing and have attracted considerable recent interest because of their many potential applications in photonics, such as to beam focusing, light-sheet microscopy, and biomedical imaging. However, previous approaches to generate Airy beams using photonic structures have suffered from severe chromatic problems arising from strong frequency dispersion of the scatterers. Here, we design and fabricate a metasurface composed of silicon posts for the frequency range 0.4–0.8 THz in transmission mode, and we experimentally demonstrate achromatic Airy beams exhibiting autofocusing properties. We further show numerically that a generated achromatic Airy-beam-based metalens exhibits self-healing properties that are immune to scattering by particles and that it also possesses a larger depth of focus than a traditional metalens. Our results pave the way to the realization of flat photonic devices for applications to noninvasive biomedical imaging and light-sheet microscopy, and we provide a numerical demonstration of a device protocol.

scholarly journals Application of Airy beam light sheet microscopy to examine early neurodevelopmental structures in 3D hiPSC-derived human cortical spheroids

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Dwaipayan Adhya ◽  
George Chennell ◽  
James A. Crowe ◽  
Eva P. Valencia-Alarcón ◽  
James Seyforth ◽  
...  
Keyword(s):  
High Resolution ◽  
Human Brain ◽  
Light Sheet ◽  
Autism Spectrum ◽  
Model Systems ◽  
Large Field ◽  
Autism Spectrum Conditions ◽  
Patient Specific ◽  
Airy Beam

Abstract Background The inability to observe relevant biological processes in vivo significantly restricts human neurodevelopmental research. Advances in appropriate in vitro model systems, including patient-specific human brain organoids and human cortical spheroids (hCSs), offer a pragmatic solution to this issue. In particular, hCSs are an accessible method for generating homogenous organoids of dorsal telencephalic fate, which recapitulate key aspects of human corticogenesis, including the formation of neural rosettes—in vitro correlates of the neural tube. These neurogenic niches give rise to neural progenitors that subsequently differentiate into neurons. Studies differentiating induced pluripotent stem cells (hiPSCs) in 2D have linked atypical formation of neural rosettes with neurodevelopmental disorders such as autism spectrum conditions. Thus far, however, conventional methods of tissue preparation in this field limit the ability to image these structures in three-dimensions within intact hCS or other 3D preparations. To overcome this limitation, we have sought to optimise a methodological approach to process hCSs to maximise the utility of a novel Airy-beam light sheet microscope (ALSM) to acquire high resolution volumetric images of internal structures within hCS representative of early developmental time points. Results Conventional approaches to imaging hCS by confocal microscopy were limited in their ability to image effectively into intact spheroids. Conversely, volumetric acquisition by ALSM offered superior imaging through intact, non-clarified, in vitro tissues, in both speed and resolution when compared to conventional confocal imaging systems. Furthermore, optimised immunohistochemistry and optical clearing of hCSs afforded improved imaging at depth. This permitted visualization of the morphology of the inner lumen of neural rosettes. Conclusion We present an optimized methodology that takes advantage of an ALSM system that can rapidly image intact 3D brain organoids at high resolution while retaining a large field of view. This imaging modality can be applied to both non-cleared and cleared in vitro human brain spheroids derived from hiPSCs for precise examination of their internal 3D structures. This process represents a rapid, highly efficient method to examine and quantify in 3D the formation of key structures required for the coordination of neurodevelopmental processes in both health and disease states. We posit that this approach would facilitate investigation of human neurodevelopmental processes in vitro.

scholarly journals Optical Forces at the Nanoscale: Size and Electrostatic Effects

Nano Letters ◽  
2017 ◽  
Vol 18 (1) ◽  
pp. 602-609 ◽  
Author(s):  
Paloma Rodríguez-Sevilla ◽  
Katarzyna Prorok ◽  
Artur Bednarkiewicz ◽  
Manuel I. Marqués ◽  
Antonio García-Martín ◽  
...  
Keyword(s):  
Optical Forces ◽  
Electrostatic Effects

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.

Numerical studies of optical forces from adiabatic rapid passage

2011 ◽  
Vol 84 (1) ◽  
Author(s):  
Daniel Stack ◽  
John Elgin ◽  
Petr M. Anisimov ◽  
Harold Metcalf
Keyword(s):  
Optical Forces ◽  
Adiabatic Rapid Passage ◽  
Numerical Studies ◽  
Rapid Passage

scholarly journals Dynamic Control of Collapse in a Vortex Airy Beam

2013 ◽  
Vol 3 (1) ◽  
Author(s):  
Rui-Pin Chen ◽  
Khian-Hooi Chew ◽  
Sailing He
Keyword(s):  
Dynamic Control ◽  
Airy Beam
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