Research Data Leeds Repository

Dataset associated with Liquid-crystal-based controllable attenuators for terahertz-frequency quantum-cascade lasers

Dunn, Aniela and Zhang, Zhaopeng and Horbury, Michael D. and Nuttall, Eleanor and Han, Yingjun and Salih, Mohammed and Li, Lianhe and Bond, Abigail and Saleh, Ehab and Harris, Russell and Pardo, Diego and Ellison, Brian and Burnett, Andrew D. and Gleeson, Helen F. and Valavanis, Alexander (2023) Dataset associated with Liquid-crystal-based controllable attenuators for terahertz-frequency quantum-cascade lasers. University of Leeds. [Dataset] https://doi.org/10.5518/1139

Dataset description

This archive contains the dataset associated with the publication entitled ''Liquid-crystal-based controllable attenuators for terahertz-frequency quantum-cascade lasers".   There has been considerable progress in the development of terahertz-frequency (THz) radiation source and detectors, along with their potential applications in recent years. However, there remains a lack of adaptive optical components to manipulate, modulate and control THz radiation. Here, we demonstrate liquid-crystal devices (LCDs), made with a commercially available material (E7), with unbiased birefringence values of 0.14-0.18 in the 0.3-4 THz band. The LCDs were used to modulate the THz radiation generated from a 3.4-THz quantum cascade laser by up to 40%, dependent upon both the liquid crystal layer thickness and bias voltage applied.  Data included are the raw time-domain data used to calculate the refractive indices and absorption coefficients shown in Figure 1, the raw time-domain data used to calculate the change in THz transmission shown in Figure 2, and an example .json file used to provide the calculation parameters to the Nelly open-access THz spectroscopy package which is available on GitHub. Also included are the raw data for Figure 3.

Subjects:	F000 - Physical sciences > F300 - Physics > F360 - Optical physics F000 - Physical sciences > F300 - Physics > F360 - Optical physics > F361 - Laser physics
Divisions:	Faculty of Engineering and Physical Sciences > School of Electronic and Electrical Engineering > Pollard Institute Faculty of Engineering and Physical Sciences > School of Physics and Astronomy Faculty of Engineering and Physical Sciences > School of Electronic and Electrical Engineering Faculty of Engineering and Physical Sciences > School of Mechanical Engineering
Related resources:	Location Type https://doi.org/10.48550/arXiv.2306.07665 Publication
License:	Creative Commons Attribution 4.0 International (CC BY 4.0)
Date deposited:	28 Jul 2023 15:16
URI:	http://archive.researchdata.leeds.ac.uk/id/eprint/1140
Additional details Additional details Creators: Creators ORCID Other ID Email Primary affiliation Primary affiliation ID Primary affiliation ID type Secondary affiliation Secondary affiliation ID Secondary affiliation ID type Dunn, Aniela https://orcid.org/0000-0002-7369-1469 University of Leeds https://ror.org/024mrxd33 ror Zhang, Zhaopeng https://orcid.org/0000-0003-2282-3406 University of Leeds https://ror.org/024mrxd33 ror Horbury, Michael D. https://orcid.org/0000-0001-8235-8142 University of Leeds https://ror.org/024mrxd33 ror Nuttall, Eleanor https://orcid.org/0000-0002-1338-8732 University of Leeds https://ror.org/024mrxd33 ror Han, Yingjun https://orcid.org/0000-0003-2141-3077 University of Leeds https://ror.org/024mrxd33 ror Salih, Mohammed University of Leeds https://ror.org/024mrxd33 ror Li, Lianhe https://orcid.org/0000-0003-4998-7259 University of Leeds https://ror.org/024mrxd33 ror Bond, Abigail University of Leeds https://ror.org/024mrxd33 ror Saleh, Ehab https://orcid.org/0000-0001-9930-5055 University of Leeds https://ror.org/024mrxd33 ror Harris, Russell https://orcid.org/0000-0002-3425-7969 University of Leeds https://ror.org/024mrxd33 ror Pardo, Diego STFC Rutherford Appleton Laboratory https://ror.org/03gq8fr08 ror Ellison, Brian https://orcid.org/0000-0003-2762-8095 STFC Rutherford Appleton Laboratory https://ror.org/03gq8fr08 ror Burnett, Andrew D. https://orcid.org/0000-0003-2175-1893 University of Leeds https://ror.org/024mrxd33 ror Gleeson, Helen F. https://orcid.org/0000-0002-7494-2100 University of Leeds https://ror.org/024mrxd33 ror Valavanis, Alexander https://orcid.org/0000-0003-4998-7259 University of Leeds https://ror.org/024mrxd33 ror Type of data: Dataset Research funders: UK Space Agency (UKSA), UKRI, CEOI, EPSRC, EPSRC Grant numbers: NSTP3-PF3-078, MR/S016929/1, RP10G0435A03, EP/P007449/1, EP/P027687/1 Publication date: 2023 Resource language: English Metadata language: English Research project title: Advanced manufacturing techniques for supra-terahertz optical components Publisher: University of Leeds Contact Email Address: A.Dunn1@leeds.ac.uk Last Modified: 28 Jul 2023 22:35

Files

Documentation

Read me file [755B] Read me file [755B] Read me file [755B] Visible to: Anyone File name: ReadMe.txt Content type: Documentation Description: details on file content Mime-Type: text/plain File size: 755B

Data

Figure 1 time-domain data [5MB] Figure 1 time-domain data [5MB] Figure 1 time-domain data [5MB] Visible to: Anyone File name: Figure1_data.zip Content type: Data Mime-Type: application/zip License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 5MB

Figure 2 time-domain data [27MB] Figure 2 time-domain data [27MB] Figure 2 time-domain data [27MB] Visible to: Anyone File name: Figure2_data.zip Content type: Data Mime-Type: application/zip License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 27MB

Figure 3 data [109kB] Figure 3 data [109kB] Figure 3 data [109kB] Visible to: Anyone File name: Figure3_data.zip Content type: Data Mime-Type: application/zip License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 109kB

Program

Sample json file [528B] Sample json file [528B] Sample json file [528B] Visible to: Anyone File name: Sample_json_file.json Content type: Program Description: sample json file for use with Nelly code Mime-Type: application/json License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 528B