scholarly journals Optical tweezing using tunable optical lattices along a few-mode silicon waveguide

Lab on a Chip ◽  
2018 ◽  
Vol 18 (12) ◽  
pp. 1750-1757 ◽  
Author(s):  
C. Pin ◽  
J.-B. Jager ◽  
M. Tardif ◽  
E. Picard ◽  
E. Hadji ◽  
...  
Keyword(s):  
Optical Trapping ◽  
Optical Lattices ◽  
Near Field ◽  
Silicon Waveguide ◽  
On Chip

On-chip optical trapping and manipulation of beads and bacteria using near-field optical lattices in few modes silicon waveguide are demonstrated.

scholarly journals Topology Design of Digital Metamaterials for Ultra-Compact Integrated Photonic Devices Based on Mode Manipulation

2021 ◽  
Author(s):  
Han Ye ◽  
Yanrong Wang ◽  
Shuhe Zhang ◽  
Danshi Wang ◽  
Yumin Liu ◽  
...  
Keyword(s):  
Photonic Devices ◽  
Topology Design ◽  
Functional Region ◽  
Optical Interconnections ◽  
Silicon Waveguide ◽  
All Optical ◽  
On Chip ◽  
Mode Order

Precise manipulation of mode order in silicon waveguide plays a fundamental role in the on-chip all-optical interconnections and is still a tough task in design when the functional region is...

scholarly journals Demonstration of an integrated nanophotonic chip-scale alkali vapor magnetometer using inverse design

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Yoel Sebbag ◽  
Eliran Talker ◽  
Alex Naiman ◽  
Yefim Barash ◽  
Uriel Levy
Keyword(s):  
Spatial Resolution ◽  
Near Field ◽  
Computer Assisted ◽  
Experimental Characterization ◽  
Optical Isolation ◽  
New Concepts ◽  
On Chip ◽  
The Cost ◽  
Micrometer Scale

AbstractRecently, there has been growing interest in the miniaturization and integration of atomic-based quantum technologies. In addition to the obvious advantages brought by such integration in facilitating mass production, reducing the footprint, and reducing the cost, the flexibility offered by on-chip integration enables the development of new concepts and capabilities. In particular, recent advanced techniques based on computer-assisted optimization algorithms enable the development of newly engineered photonic structures with unconventional functionalities. Taking this concept further, we hereby demonstrate the design, fabrication, and experimental characterization of an integrated nanophotonic-atomic chip magnetometer based on alkali vapor with a micrometer-scale spatial resolution and a magnetic sensitivity of 700 pT/√Hz. The presented platform paves the way for future applications using integrated photonic–atomic chips, including high-spatial-resolution magnetometry, near-field vectorial imaging, magnetically induced switching, and optical isolation.

scholarly journals Direct quantification of topological protection in symmetry-protected photonic edge states at telecom wavelengths

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Sonakshi Arora ◽  
Thomas Bauer ◽  
René Barczyk ◽  
Ewold Verhagen ◽  
L. Kuipers
Keyword(s):  
Near Field ◽  
Edge States ◽  
Quantum Networks ◽  
Hall Effects ◽  
Upper Limits ◽  
On Chip ◽  
Symmetry Protected ◽  
Topological Robustness ◽  
Direct Quantification ◽  
Sub Wavelength

AbstractTopological on-chip photonics based on tailored photonic crystals (PhCs) that emulate quantum valley-Hall effects has recently gained widespread interest owing to its promise of robust unidirectional transport of classical and quantum information. We present a direct quantitative evaluation of topological photonic edge eigenstates and their transport properties in the telecom wavelength range using phase-resolved near-field optical microscopy. Experimentally visualizing the detailed sub-wavelength structure of these modes propagating along the interface between two topologically non-trivial mirror-symmetric lattices allows us to map their dispersion relation and differentiate between the contributions of several higher-order Bloch harmonics. Selective probing of forward- and backward-propagating modes as defined by their phase velocities enables direct quantification of topological robustness. Studying near-field propagation in controlled defects allows us to extract upper limits of topological protection in on-chip photonic systems in comparison with conventional PhC waveguides. We find that protected edge states are two orders of magnitude more robust than modes of conventional PhC waveguides. This direct experimental quantification of topological robustness comprises a crucial step toward the application of topologically protected guiding in integrated photonics, allowing for unprecedented error-free photonic quantum networks.

On-Chip Terahertz Near-Field Generation/Detection Scheme

2018 ◽  
Author(s):  
Dmitry S. Bulgarevich ◽  
Yusuke Akamine ◽  
Hideaki Kitahara ◽  
Valynn Katrine P. Mag-Usara ◽  
Hiroyuki Kato ◽  
...  
Keyword(s):  
Near Field ◽  
Detection Scheme ◽  
Field Generation ◽  
On Chip

scholarly journals On-chip optical interconnection by using integrated III-V laser diode and photodetector with silicon waveguide

2010 ◽  
Vol 18 (15) ◽  
pp. 15440 ◽  
Author(s):  
Kazuya Ohira ◽  
Kentaro Kobayashi ◽  
Norio Iizuka ◽  
Haruhiko Yoshida ◽  
Mizunori Ezaki ◽  
...  
Keyword(s):  
Laser Diode ◽  
Optical Interconnection ◽  
Silicon Waveguide ◽  
On Chip

Photocatalytic nano-optical trapping using TiO2 nanosphere pairs mediated with Mie-scattered near field

2013 ◽  
Vol 111 (1) ◽  
pp. 117-126
Author(s):  
Toshiyuki Honda ◽  
Mitsuhiro Terakawa ◽  
Minoru Obara
Keyword(s):  
Optical Trapping ◽  
Near Field

scholarly journals On-chip optical trapping and Raman spectroscopy using a TripleX dual-waveguide trap

2014 ◽  
Vol 22 (25) ◽  
pp. 30528 ◽  
Author(s):  
Martijn Boerkamp ◽  
Thijs van Leest ◽  
Jeroen Heldens ◽  
Arne Leinse ◽  
Marcel Hoekman ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Optical Trapping ◽  
On Chip

On-chip optical isolator based on unidirectional wavelength-mode conversion waveguide

2018 ◽  
Vol 32 (22) ◽  
pp. 1850258 ◽  
Author(s):  
Wenlong Liu ◽  
Xuebin Liu ◽  
Qiangqiang Yan ◽  
Simiao Qiang ◽  
Haifeng Pi ◽  
...  
Keyword(s):  
Fundamental Mode ◽  
Mode Conversion ◽  
Forward Direction ◽  
Light Signal ◽  
Necessary Condition ◽  
Order Mode ◽  
Optical Isolator ◽  
Silicon Waveguide ◽  
Time Space ◽  
On Chip

Breaking Lorentz reciprocity is one necessary condition of optical isolator design. Unidirectional wavelength-mode conversion will be realized in a time-dependent system through a short operating range. Based on plasma dispersion effect, generate space-asymmetric periodical time-space modulation on silicon waveguide, and non-reciprocal propagation is realized in the waveguide. The designed unidirectional wavelength-mode conversion waveguide demonstrated that in the forward direction, input 1.55 [Formula: see text]m fundamental mode light signal and then output 1.5492 [Formula: see text]m is of 1st-order mode, while in the backward direction, input 1.5492 [Formula: see text]m is of 1st-order mode light signal and then output 1.5484 [Formula: see text]m is of fundamental mode. Based on this non-reciprocal structure, mode conversion waveguide and two-ring resonance filters were designed then, to accomplish on-chip optical isolation. The scale of the designed isolator is 160 [Formula: see text]m × 60 [Formula: see text]m, and the isolation is 21 dB, revealing perfect application potential.

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