Polarisation
Light is a transverse wave that can be either polarized or unpolarized depending on its orientation. Polarizers selectively filter specific vibration directions and are used in technology, medicine, and photography. colorPol® polarizers from codixx are made of thin glass containing aligned silver nanoparticles. They enable precise linear polarization across the UV, visible, and IR spectrum.
A detailed and comprehensive explanation of the principle of polarization and colorPol® polarizers can be found in our publication:
How colorPol® polarizers work
Cleaning information for colorPol® polarizers
colorPol® polarizers products are packed and delivered in clean condition, but over the course of time the surfaces may have minor, uncritical contaminations caused by transport or other circumstances.
This document provides fundamental recommendations for the effective cleaning of colorPol® polarizers. They are valid for all colorPol® polarizers (unlaminated, laminated, not AR coated and AR coated).
Principally all typical cleaning materials (e.g. isoprohyl, distilled water etc.) and cleaning utensils can be used without hesitations, which are suited for glass.
Especially a further processing of colorPol® polarizers can require an intense and effortful cleaning.
Depending on the contamination we reccomend to notice the following comments for dry cleaning (in case of dust or particles on the surface) or chemical wet cleaning (in case of stains or conatminations like finger prints, reams etc.).
A summary of this cleaning tips is available as a PDF as well in our downloads.
Reference polarizer
To identify the axis of polarization of colorPol® polarizers
The polarization tester is suitable for determining the polarization axis of colorPol® polarizers for the ultraviolet, visible and infrared range. The polarization axis of other linear polarizers in the visible range can also be tested.
Instructions for use
If you use this reference filter to test a polarizer other than colorPol® polarizers, you should remove all protective films before use to obtain correct results.
Healthcare
Winkelmann, H., Richter, C. P., Eising, J., Piehler, J., & Kurre, R. (2024). Correlative single-molecule and structured illumination microscopy of fast dynamics at the plasma membrane. Nature Communications, 15, 5813.
"Total internal reflection fluorescence (TIRF) microscopy offers powerful means to uncover the functional organization of proteins in the plasma membrane with very high spatial and temporal resolution."
Mohebi, A., Le Gratiet, A., Trianni, A., Callegari, F., Bianchini, P., & Diaspro, A. (2022). Phasor map analysis to investigate Hutchinson–Gilford progeria cell under polarization-resolved optical scanning microscopy. Scientific Reports, 12(1679).
"Polarized light scanning microscopy is a non-invasive and contrast-enhancing technique to investigate anisotropic specimens and chiral organizations."
Application Notes
Communikation
H. Conradi, T. Qian, M. Kresse, J. Reck, D. de Felipe, M. Kleinert, M. Weigel, C. Zawadzki, N. Keil, and M. Schell, "Tunable DBR Laser with Integrated Optical Isolator," in Optical Fiber Communication Conference (OFC) 2021, P. Dong, J. Kani, C. Xie, R. Casellas, C. Cole, and M. Li, eds., OSA Technical Digest (Optica Publishing Group, 2021), paper W1B.6.
"Integration of a tunable DBR laser with an optical isolator in a polymer platform achieves 38 dB isolation over 17 nm tuning range and 5.6 mW output power. Device size is 2 x 6 mm2."
Measurement
Liu, X., Zhang, L., Zhai, X., Li, L., Zhou, Q., Chen, X., & Li, X. (2023). Polarization Lidar: Principles and Applications. Photonics, 10(10), 1118.
"Traditional lidar techniques mainly rely on the backscattering/echo light intensity and spectrum as information sources. In contrast, polarization lidar (P-lidar) expands the dimensions of detection by utilizing the physical property of polarization."
Imhomoh, E. L., Nwadike, S. U., Okpo, K. O., & Rabiu, T. B. (2023). Optical technology in current measurements as a substitute to inductive and capacitive measurement transformers: A case for the Nigerian electricity industry. International Journal of Engineering Science Invention (IJESI), 12(11), 26–31.
"Electric utilities have started assessing optical sensors to measure voltage and current as recent
researches suggest. These devices are showing their worth, particularly in situations where enhanced safety,
modification and precise measurement over a larger dynamic range are the primary concerns."
Schwartz, P., Ambroz, J., Gömöry, P., Kozák, M., Kučera, A., Rybák, J., … Watt, A. (2013). Coronal Multi-channel Polarimeter at the Lomnicky Peak Observatory. Proceedings of the International Astronomical Union, 8 (S300), 521–522.
"Coronal Multi-channel Polarimeter (CoMP-S), developed by HAO/NCAR, has been introduced to regular operation at the Lomnicky Peak Observatory (High Tatras in northern Slovakia, 2633 m a.s.l.) of the Astronomical Institute of Slovak Academy of Sciences. We present here the technical parameters of the current version of the instrument and its potential for observations of prominences in the visual and near-IR spectral regions."
Security
Lowndes, David & Frick, Stefan & Hart, Andy & Rarity, John. (2021). A low cost, short range quantum key distribution system. EPJ Quantum Technology. 8. 10.1140/epjqt/s40507-021-00101-2.
We present a miniaturized quantum key distribution system, designed to augment the more mature quantum key distribution systems currently commercially available.
Quantum Optics
Michail, E. (2021). Design and development of a two-photon absorption induced fluorescence spectrometer and the investigation of nonlinear optical properties of organic chromophores (Doctoral dissertation, Julius-Maximilians-Universität Würzburg).
"Main objectives of the present dissertation can be divided in two parts. The first part deals with setting up a spectroscopic technique for reliable and accurate measurements of the two-photon absorption (2PA) cross section spectra. In the second part, this firmly established experimental technique together with conventional spectroscopic characterization, quantum-chemical computations and theoretical modelling calculations was combined and therefore used as a tool to gain information for the so-called structure-property relationship through."