Benefits and Challenges of Optical Positioning during Landing Approach

2017 ◽  
Author(s):  
S. Wolkow ◽  
A. Schwithal ◽  
C. Tonh�user ◽  
M. Angermann ◽  
U. Bestmann ◽  
...  
Keyword(s):  
Optical Positioning

scholarly journals Assembly of multicomponent structures from hundreds of micron-scale building blocks using optical tweezers

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Jeffrey E. Melzer ◽  
Euan McLeod
Keyword(s):  
Optical Tweezers ◽  
Three Dimensional ◽  
Building Blocks ◽  
Optical Tweezer ◽  
Device Fabrication ◽  
Positional Accuracy ◽  
Component Structure ◽  
Material Development ◽  
Critical Process Parameters ◽  
Optical Positioning

AbstractThe fabrication of three-dimensional (3D) microscale structures is critical for many applications, including strong and lightweight material development, medical device fabrication, microrobotics, and photonic applications. While 3D microfabrication has seen progress over the past decades, complex multicomponent integration with small or hierarchical feature sizes is still a challenge. In this study, an optical positioning and linking (OPAL) platform based on optical tweezers is used to precisely fabricate 3D microstructures from two types of micron-scale building blocks linked by biochemical interactions. A computer-controlled interface with rapid on-the-fly automated recalibration routines maintains accuracy even after placing many building blocks. OPAL achieves a 60-nm positional accuracy by optimizing the molecular functionalization and laser power. A two-component structure consisting of 448 1-µm building blocks is assembled, representing the largest number of building blocks used to date in 3D optical tweezer microassembly. Although optical tweezers have previously been used for microfabrication, those results were generally restricted to single-material structures composed of a relatively small number of larger-sized building blocks, with little discussion of critical process parameters. It is anticipated that OPAL will enable the assembly, augmentation, and repair of microstructures composed of specialty micro/nanomaterial building blocks to be used in new photonic, microfluidic, and biomedical devices.

Location Aware Multi-cell MIMO Communications Assisted by Optical Positioning

2021 ◽  
Author(s):  
Haibo Wang ◽  
Zaichen Zhang ◽  
Huiping Shi ◽  
Jian Dang ◽  
Liang Wu ◽  
...  
Keyword(s):  
Mimo Communications ◽  
Location Aware ◽  
Optical Positioning

scholarly journals Strong coupling through optical positioning of a quantum dot in a photonic crystal cavity

2009 ◽  
Vol 94 (11) ◽  
pp. 111115 ◽  
Author(s):  
Susanna M. Thon ◽  
Matthew T. Rakher ◽  
Hyochul Kim ◽  
Jan Gudat ◽  
William T. M. Irvine ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Quantum Dot ◽  
Strong Coupling ◽  
Photonic Crystal Cavity ◽  
Optical Positioning

Analysis of high-precision optical positioning systems for vibration stability at the advanced photon source

1997 ◽  
Author(s):  
Ipek Basdogan ◽  
Thomas J. Royston ◽  
Ahmed A. Shabana ◽  
Juan Barraza, Jr. ◽  
Deming Shu ◽  
...  
Keyword(s):  
High Precision ◽  
Positioning Systems ◽  
Vibration Stability ◽  
Optical Positioning ◽  
Photon Source

Nanoscale Optical Positioning of Single Quantum Dots for Efficient Quantum Photonic Devices

CLEO: 2015 ◽  
2015 ◽  
Author(s):  
Luca Sapienza ◽  
Marcelo I. Davanco ◽  
Antonio Badolato ◽  
Kartik Srinivasan
Keyword(s):  
Quantum Dots ◽  
Photonic Devices ◽  
Single Quantum ◽  
Single Quantum Dots ◽  
Optical Positioning

A low-cost remotely operated vehicle (ROV) with an optical positioning system for under-ice measurements and sampling

2018 ◽  
Vol 151 ◽  
pp. 148-155 ◽  
Author(s):  
Lars Chresten Lund-Hansen ◽  
Thomas Juul ◽  
Tor Dam Eskildsen ◽  
Ian Hawes ◽  
Brian Sorrell ◽  
...  
Keyword(s):  
Low Cost ◽  
Positioning System ◽  
Remotely Operated Vehicle ◽  
Optical Positioning
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