If you don't see your institution, add your dataset to the main dataverse named "RepOD".
Select the collection to which you want to add the new dataset:
You need to Sign In/Sign Up to add a dataset.
Share this dataset on your favorite social media networks.
Pierścińska, Dorota, 2026, "Multi-layer coatings designed for optical power enhancement of long-wavelength infrared quantum cascade lasers", https://doi.org/10.18150/OTV42H, RepOD, V1
Learn about Data Citation Standards.
This work presents the design, fabrication, and experimental validation of multilayer optical coatings for enhancing the optical power of long-wavelength infrared (LWIR) quantum cascade lasers (QCLs). A high-reflectivity (HR) coating based on a Y₂O₃/Ti/Au structure and a novel partial-reflectivity (PR) coating using a Y₂O₃/Ge bilayer were developed. Optical constants were determined by ellipsometry and used for numerical optimization, while FTIR measurements confirmed the coatings’ optical performance.
Applying HR and PR coatings to the rear and front facets of QCLs (λ = 9.3 μm) resulted in a significant increase in output power (from 974 mW to 1653 mW per facet) without affecting the threshold current density. The extracted reflectivities were 96% (HR) and 9% (PR). This work demonstrates, for the first time, a Y₂O₃/Ge-based PR coating on QCL facets, enabling substantial performance improvement.
Coatings Coating Mid-infared Photonics Optical Materials Quantum Cascade Lasers Solid-State Lasers Optical Coating Technologies for Antireflective Applications
Dominika Niewczas, Agata Krząstek, Dorota Pierścińska, Tomasz Stefaniuk, Artur Broda, and Kamil Pierściński, Multi-layer coatings designed for optical power enhancement of long-wavelength infrared quantum cascade lasers, Optics Letters Vol. 50, Issue 16, pp. 4934-4937 (2025) https://opg.optica.org/ol/fulltext.cfm?uri=ol-50-16-4934 doi: 10.1364/OL.569430
CC0 Creative Commons Zero 1.0
Select all 26 files in this dataset.
Please select a file or files to be deleted.
The file(s) will be deleted after you click on the Delete button.
Files will not be removed from previously published versions of the dataset.
Please select a file or files to be edited.
For selected file(s) set a license to
Please select a file or files to be downloaded.
Please select a file or files for access request.
Please select restricted file(s) to be unrestricted.
You need to Log In/Sign Up to request access to this file.
Please confirm and/or complete the information needed below in order to continue.
Asterisks indicate required fields
Access to file(s) subject to additional consent under following conditions:
The restricted file(s) selected may not be downloaded because you have not been granted access.
Click Continue to download the files you have access to download.
Are you sure you want to delete this dataset and all of its files? You cannot undelete this dataset.
Are you sure you want to delete this draft version? Files will be reverted to the most recently published version. You cannot undelete this draft.
Use a Anonymized Private URL to allow those without an account in the repository to access your dataset. For more information about the Private URL feature, please refer to the User Guide.
Private URL has not been created.
"WARNING. This dataset has at least one published version. Those who have access to the Anonymized Private URL for this dataset may be able to use its accessible metadata to look up the full, not anonymized version of this dataset.
Are you sure you want to disable the Private URL? If you have shared the Private URL with others they will no longer be able to use it to access your dataset.
Use a Private URL to allow those without an account in the repository to access your dataset. For more information about the Private URL feature, please refer to the User Guide.
You will not be able to make changes to this dataset while it is in review.
This dataset cannot be published until RepOD is published. Would you like to publish both right now?
Once you publish this dataset it must remain published.
Are you sure you want to republish this dataset?
Select if this is a minor or major version update.
This dataset cannot be published until RepOD is published by its administrator.
This dataset cannot be published until RepOD and are published.
Are you sure you want to deaccession? The selected version(s) will no longer be viewable by the public.
Are you sure you want to lift the embargo?
Once you lift the embargo, you will not be able to set it again.
RepOD repository support
Please fill this out to prove you are not a robot.
