Using them at higher temperatures cannot guarantee that the coating layer will not peel or deform from the substrate. The lot cost is typically divided into quantity, so pricing/pc does become more competitive as the chamber fills up. Hello, thank you for contacting Thorlabs. I will reach out to you directly to provide the GVD curve for our -E03 coating. "Phase retardance of periodic multilayer mirrors",J. H. Apfel, "All-polymer methylammonium lead iodide perovskite microcavities", "One-pot synthesis of polymer/inorganic hybrids: toward readily accessible, low-loss, and highly tunable refractive index materials and patterns", Fast code for computation of dielectric mirror reflectivity and dispersion, https://en.wikipedia.org/w/index.php?title=Dielectric_mirror&oldid=987244811, Creative Commons Attribution-ShareAlike License, This page was last edited on 5 November 2020, at 20:40. Response from Buki at Thorlabs: Could you please publish this data since it is a recurrent need of the customer as I can see from the feedback ? Could you list them alongside the LIDT for pulsed lasers? A naive calculation of the average linear power density of this beam would yield a value of 0.5 W/cm, given by the total power divided by the beam diameter: However, the maximum power density of a Gaussian beam is about twice the maximum power density of a uniform beam, as shown in the graph to the right. … The round Ø1/2", Ø1", and Ø2" mirrors are also available in packs of 10 at a discount over the individual price. I'm interested in the reflectance of the E01 coating at an angle of 60 and 75 degrees. The pulse length must now be compensated for. Could you please send me the dispersion curve for the BB2-E03 type of mirror? Can you give information on the phase shift in the E02 coating between s- and p-polarized light (for a wavelength of 532 nm and an angle of incidence of 45 degree)? CW damage threshold values typically scale directly with the wavelength of the laser source, so this yields an adjusted LIDT value: The adjusted LIDT value of 350 W/cm x (1319 nm / 1550 nm) = 298 W/cm is significantly higher than the calculated maximum linear power density of the laser system, so it would be safe to use this doublet lens for this application. I seem to lose more light when the beam is highly focussed on striking the mirror. I will contact you directly to discuss your coating. Hello Dominic, thank you for contacting Thorlabs. We can also make speciality mirrors, e.g. We have contacted you to discuss further. Testing may result in additional costs or lead times. Thank you for contacting Thorlabs. John Burris. Hi Alex, thank you for contacting Thorlabs. I inquired one week ago about s and p phase information for E03 coating, can you please let me know if you are able to give me some data on this. We would need a 15 mm diameter, 0.5-1 mm thick mirror. Please do not enter personal data here; we would otherwise delete it soon. And the exposure time you used? Next, the power/energy is either increased or decreased and the optic is exposed at 10 new locations. Read the article: "Laser Physics Helps to Understand the Corona Virus Crisis"! 91, 127402 (2003). Response from Buki at Thorlabs: What is your initial beam diameter, the focal length of your focusing lens, and its NA? So we understand why the reflection features of dielectric mirrors move towards shorter wavelengths when they are tilted against the input beam. Rev. Both of these LIDT values, while measured at 355 nm, were determined with a 10 ns pulsed laser at 10 Hz. Laser mirrors designed for dye, diode, Nd:YAG, Nd:YLF, Yb:YAG, Ti:sapphire, fiber, and many more laser sources are available as flat mirrors, right angle mirrors, concave mirrors, and other specialty shapes. Common techniques are physical vapor deposition (which includes evaporative deposition and ion beam assisted deposition), chemical vapor deposition, ion beam deposition, molecular beam epitaxy, and sputter deposition. If the coating is multiple layer structure, what are the thickness of each layer? The thicknesses of the layers are chosen such that the path-length differences for reflections from different high-index layers are integer multiples of the wavelength for which the mirror is designed. 1000- 1200. Also considering the coating? Good day. At 45 degrees. Excel Spreadsheet with Raw Data for -E01 Coating, 8° and 45° AOI, Excel Spreadsheet with Raw Data for -E02 Coating, 8° and 45° AOI, Excel Spreadsheet with Raw Data for -E03 Coating, 8° and 45° AOI, Excel Spreadsheet with Raw Data for -E04 Coating, 8° and 45° AOI. Response from Tim at Thorlabs: We have found that the relative phase shift of dielectric mirrors can deviate from lot to lot and from theory more than either metallic mirrors or dielectrics that are specifically designed with this parameter in mind.

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