• Corpus ID: 235624079

Sensing applied pressure by triggering electronic quantum many-body excitations in an optical waveguide

  title={Sensing applied pressure by triggering electronic quantum many-body excitations in an optical waveguide},
  author={Federica Chiara and Hovan Lee and Cedric Weber and Hongbin Liu},
Recently, nanomaterials are arousing increasing interest and a wide variety of optoelectronic 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… 

Figures from this paper



Quantum Dots-Doped Tapered Hydrogel Waveguide for Ratiometric Sensing of Metal Ions.

A new type of soft, biocompatible, and tapered optical waveguide with capability of delivering light in deep tissues is reported and demonstrated as a ratiometric probe for rapid point-of-care detection of metal ions.

Piezotronic effect on the luminescence of quantum dots for micro/nano-newton force measurement

The luminescence of semiconductor quantum dots (QDs) can be adjusted using the piezotronic effect. An external mechanical force applied on the QD generates a piezoelectric potential, which alters the

Luminescence-Based Optical Fiber Chemical Sensors

Abstract A scheme for the simultaneous determination of temperature and analyte concentration for application in luminescence-based chemical sensors is proposed. This scheme is applied to an optical

Quantum dots as self-referenced optical fibre temperature probes for luminescent chemical sensors

The use of semiconductor nano-particles as temperature probes in luminescence chemical sensing applications is addressed. Temperature changes the intensity, the peak wavelength and the spectral width

A Low Loss Quantum-Dot-Doped Optical Fiber Temperature Sensor Based on Flexible Print Technology

A quantum dots optical fiber (QDOF) sensor is proposed for temperature sensing in this paper. The sensor is fabricated by the drop-on-demand inkjet printing technology. By controlling the diameter of

Optical waveguiding properties of colloidal quantum dots doped polymer microfibers.

QDs-doped polymer microfibers are fabricated through direct drawing method with improved surface quality and flexibility by adding the polymethylmethacrylate into polystyrene, and this structure may find widespread applications in integrated photonic devices.

Quantum dots to probe temperature and pressure in highly confined liquids

A new in situ technique for temperature and pressure measurement within dynamic thin-film flows of liquids is presented. The technique is based on the fluorescence emission sensitivity of

Development of quantum dot-based biosensors: principles and applications.

This review summary summarizes the progress of QD-based biosensors in the last 5 years including Q D-based fluorescent, bioluminescent, chemiluminescence, photoelectrochemical biosensor, and focus on their basic principles and their applications for the detection of DNAs, microRNAs, proteins, enzymes, and living cells.

Temperature Sensor Based on Colloidal Quantum Dots–PMMA Nanocomposite Waveguides

In this paper, integrated temperature sensors based on active nanocomposite planar waveguides are presented. The nanocomposites consist of cadmium selenide (CdSe) and cadmium telluride (CdTe) quantum