Sensing applied pressure by triggering electronic quantum many-body
excitations in an optical waveguide
- URL: http://arxiv.org/abs/2106.13004v1
- Date: Thu, 24 Jun 2021 13:31:57 GMT
- Title: Sensing applied pressure by triggering electronic quantum many-body
excitations in an optical waveguide
- Authors: Federica De Chiara, Hovan Lee, Cedric Weber, Hongbin Liu
- Abstract summary: The light emission properties of quantum dots under pressure are studied using a polymer waveguide doped with CdSe quantum dots for pressure sensing.
The proposed prototype benefits from the main advantages of optical sensors, such as their predisposition to miniaturization, small cable sizes and weights, immunity to electromagnetic interference, and safe operation in hazard environments.
- Score: 3.754058630674506
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Recently, nanomaterials are arousing increasing interest and a wide variety
of opto-electronic devices have been developed, such as light-emitting diodes,
solar cells, and photodetectors. However, the study of the light emission
properties of quantum dots under pressure is still limited. By using a joint
theoretical and experimental approach, we developed a polymer waveguide doped
with CdSe quantum dots for pressure sensing. Absorption and re-emission effects
of the quantum dots are affected by the pressure applied on the waveguide.
Specifically, since both amplitude and wavelength are modulated, not only the
pressure can be detected, but also its location along the waveguide. The
calibration results demonstrate the feasibility of the proposed force sensor
design. Theoretical model and simulations further validate the presented
sensing principle. The proposed prototype benefits from the main advantages of
optical sensors, such as their predisposition to miniaturization, small cable
sizes and weights, immunity to electromagnetic interference, and safe operation
in hazard environments. In addition, bio-compatibility, non-toxicity and
flexibility make the presented sensor potentially appealing to various
application fields such as nanobiotechnology and robotic sensing.
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