.png){kind=icon}
Return
Optimising backscatter from multiple beam interference
.png){kind=icon}
OA
AI
DOI：10.1364/OE.420384.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
Optical sensing applications are usually reliant on the intensity of the measured signal. For remote sensing applications where a target is probed with a laser beam, the sensitivity will be limited by the amount of backscattered light returned from the target to the detector. We demonstrate a method of increasing the signal returned to the detector by illuminating the target with a number of independently controlled beams, where both the position and phase are optimised. We show an improvement in the backscattered signal that is proportional to the number of beams used. The method is demonstrated within a laser microphone, measuring audio signal due to vibrations in surfaces, showing a significant improvement in the signal-to-noise of the measurement. Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License.
Keywords:
AMPLITUDE
PHASE
LIGHT
Journal
IF:
3.3
Papers:
6.1W
Citations:
14.3W
Organization
Cited Papers
ShareSaveLarge-scale silicon nitride nanophotonic phased arrays at infrared and visible wavelengths.png)
OPTICS LETTERS
OAAI
OPTICS LETTERSIF3.3
OAAIShareSaveHigh-fidelity phase and amplitude control of phase-only computer generated holograms using conjugate gradient minimisationOPTICS EXPRESSOAAI
OPTICS EXPRESSIF3.3
OAAIShareSave3D manipulation of particles into crystal structures using holographic optical tweezersOPTICS EXPRESSOAAI
OPTICS EXPRESSIF3.3
OAAIShareSaveShareSaveShareSave
View more