Research Data Leeds Repository

Liquid Crystal Lyot Filter Data for Application as a Laser Filter

Jull, Ethan and Gleeson, Helen (2017) Liquid Crystal Lyot Filter Data for Application as a Laser Filter. University of Leeds. [Dataset] https://doi.org/10.5518/222

Dataset description

Data used to analyse the ability for a liquid crystal (LC) Lyot filter to be used in laser protection. The data is referenced in “A tuneable and switchable liquid crystal laser filter” by E. I. L. Jull and H. F. Gleeson. Different modelling and experimental procedures were used in obtaining the data included, further detail of which can be found in the readme.txt file.

Keywords:	Liquid Crystal, Lyot Filter, Laser, Protection, Device, Switchable, Tuneable
Subjects:	F000 - Physical sciences > F100 - Chemistry > F120 - Inorganic chemistry F000 - Physical sciences > F300 - Physics > F360 - Optical physics F000 - Physical sciences > F200 - Materials science
Divisions:	Faculty of Engineering and Physical Sciences > School of Physics and Astronomy
License:	Creative Commons Attribution 4.0 International (CC BY 4.0)
Date deposited:	21 Sep 2017 11:46
URI:	http://archive.researchdata.leeds.ac.uk/id/eprint/252
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 Jull, Ethan https://orcid.org/0000-0003-3228-1348 Gleeson, Helen https://orcid.org/0000-0002-7494-2100 Type of data: Dataset Research funders: EPSRC Grant numbers: EP/N509681/1 Publication date: 2017 Resource language: English Metadata language: English Research project title: The use of liquid crystals for novel optical shutters. Publisher: University of Leeds Contact Email Address: py12ej@leeds.ac.uk Last Modified: 21 Sep 2017 22:45

Files

Documentation

Readme [1kB] Readme [1kB] Readme [1kB] Visible to: Anyone File name: readme.txt Content type: Documentation Description: Documentation Mime-Type: text/plain License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 1kB

Data

Extended Cauchy Model [109kB] Extended Cauchy Model [109kB] Extended Cauchy Model [109kB] Visible to: Anyone File name: Extended_Cauchy_Model_Results.xlsx Content type: Data Description: The extended Cauchy model was used to theoretically calculate the relation between refractive index and wavelength (dispersion). The results produced by the equation and later used in modelling for Lyot filter transmission are shown in this file. Mime-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 109kB

Far Field Laser Spot (ON) 0.949Vrms [514kB] Far Field Laser Spot (ON) 0.949Vrms [514kB] Far Field Laser Spot (ON) 0.949Vrms [514kB] Visible to: Anyone File name: Far_Field_Laser_Spot_through_Lyot_filter_ON.jpg Content type: Data Description: Images of the laser spot in the far field are taken through the Lyot filter when in protection mode. Images were taken using a deltaPix camera. Mime-Type: image/jpeg License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 514kB

Far Field Laser Spot (OFF) 30.18Vrms [2MB] Far Field Laser Spot (OFF) 30.18Vrms [2MB] Far Field Laser Spot (OFF) 30.18Vrms [2MB] Visible to: Anyone File name: Far_Field_Laser_Spot_through_Lyot_filter_OFF.jpg Content type: Data Description: Images of the laser spot in the far field are taken through the Lyot filter when in full transmission mode. Images were taken using a deltaPix camera. Mime-Type: image/jpeg License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 2MB

Imaging in Protection Mode [4MB] Imaging in Protection Mode [4MB] Imaging in Protection Mode [4MB] Visible to: Anyone File name: Imaging_through_Lyot_filter_0Vrms.jpg Content type: Data Description: Imaging whilst focused on an object through the Lyot filter was undertaken whilst in protection mode. A Nikon D7100 camera was used for this task. Mime-Type: image/jpeg License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 4MB

Imaging in Transmission Mode [4MB] Imaging in Transmission Mode [4MB] Imaging in Transmission Mode [4MB] Visible to: Anyone File name: Imaging_through_Lyot_filter_30Vrms.jpg Content type: Data Description: Imaging whilst focused on an object through the Lyot filter was undertaken whilst in transmission mode. A Nikon D7100 camera was used for this task. Mime-Type: image/jpeg License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 4MB

Effect of Applied Voltage on Birefringence [60kB] Effect of Applied Voltage on Birefringence [60kB] Effect of Applied Voltage on Birefringence [60kB] Visible to: Anyone File name: Modelled_Birefringence_wrt_Voltage_for_5cb.xlsx Content type: Data Description: The theoretically calculated Birefringence dependency on voltage for 5CB is given in this data file. Mime-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 60kB

Steady State Lyot Filter Transmission Spectrum [85kB] Steady State Lyot Filter Transmission Spectrum [85kB] Steady State Lyot Filter Transmission Spectrum [85kB] Visible to: Anyone File name: Steady_State_Experimental_and_Theoretical_Transmission_Data.xlsx Content type: Data Description: A comparison of the theoretical and experimental transmission spectrum for a Lyot filter under no applied field. Mime-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 85kB

Switching Lyot Filter Transmission Spectrum [76kB] Switching Lyot Filter Transmission Spectrum [76kB] Switching Lyot Filter Transmission Spectrum [76kB] Visible to: Anyone File name: Switching_Transmission_Experimental_Data.xlsx Content type: Data Description: The experimental data showing the ability to switch between full wavelength independent transmission and protection mode is shown. Mime-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 76kB

Tuning Lyot Filter Transmission Spectrum [1MB] Tuning Lyot Filter Transmission Spectrum [1MB] Tuning Lyot Filter Transmission Spectrum [1MB] Visible to: Anyone File name: Tuning_Transmission_Experimental_Data.xlsx Content type: Data Description: The experimental data for the tuning of the Lyot filter transmission spectrum is shown. Mime-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 1MB

Relationship between Rejected Wavelength and Applied Voltage [12kB] Relationship between Rejected Wavelength and Applied Voltage [12kB] Relationship between Rejected Wavelength and Applied Voltage [12kB] Visible to: Anyone File name: Rejected_Wavelength_Change_with_Voltage_Experimental_Data.xlsx Content type: Data Description: The rejected wavelength is tracked as a function of voltage using the tuning transmission spectrum data. The relationship between the two is demonstrated in this dataset Mime-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 12kB

Switch Speed - Laser Source [77kB] Switch Speed - Laser Source [77kB] Switch Speed - Laser Source [77kB] Visible to: Anyone File name: Switch_Speed_Experimental_Data_Green_Laser_Light_Source.xlsx Content type: Data Description: The light intensity is measured with a photodiode and a switch is performed showing the speed at which the Lyot filter can provide protection (measured using a green laser diode) Mime-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 77kB

Switch Speed - White Light Source [375kB] Switch Speed - White Light Source [375kB] Switch Speed - White Light Source [375kB] Visible to: Anyone File name: Switch_Speed_Experimental_Data_White_Light_Source.xlsx Content type: Data Description: The light intensity is measured with a photodiode and a switch is performed showing the speed at which the Lyot filter can provide protection (measured using a white light source). Mime-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 375kB