Del Mar Photonics - Newsletter December 2010 - Newsletter April 2011

Customer inquiry:
I am looking for the price of a 1” 10 degree laser diffuser for 355nm operation and moderate power levels (14 ns Gaussian pulse at 260 mJ, 8.5mm diameter beam). Do these diffusers have a flattop output characteristic? What is the transmission % like through one of these diffusers?

Del Mar Photonics offer:
U.V. GRADE FUSED SILICA DIFFUSER - request a quote
25mm DIA.±0.5mm) X 1.5mm THICK (±0.25mm) / 10° FWHM

DF-FS-25-1.5-10

High Power Fused Silica Diffuser, ø25.0 mm, thickness 1.5 mm, 10°

NOTE 1) WE HAVE QUOTED OUR STANDARD SIZED 25mm DIA. DIFFUSER. IF YOU REQUIRE AN ACTUAL 25.40mm DIA. DIFFUSER, WE WILL NEED TO HAVE SPECIAL TOOLING MADE AND THAT WILL REQUIRE A TOOLING CHARGE.
NOTE 2) THE TRANSMISSION IS 85% & THESE DIFFUSERS DO NOT HAVE A FLATTOP OUTPUT CHARACTERISTIC. THEY ARE GAUSSIAN.
NOTE 3) CURRENT LEAD TIME IS 4 WKS ARO FOR THE 25mm DIA. DIFFUSER. IF 25.40mm DIA. IS REQUIRED, THE LEAD TIME WILL BE LONGER BASED UPON THE NEED TO MAKE SPECIAL TOOLING.

Transmission calculation for Heraeus UV grade fused silica which is used in for diffusers.

High Power/Transmission Diffuser

High-Performance Diffuser™ (HPD) has been developed for UV, Visible and IR laser and light applications requiring maximum power tolerance, thermal stability (zero drift), high transmission, long cycle life, thermal shock resistance, and very low speckle. The fused silica HPD has higher transmission and handles high power better than traditional Fused silica, opal and ceramic diffusers – extending the diffuser lifetime and reducing system down time for maintenance. Large diffusion angles allow for less sensitivity to beam misalignment. In-stock cone angles available in the range of 12 to 40 degrees FWHM. E-mail us to receive a quote.

Del Mar Photonics featured optical components

Del Mar Photonics continuously expands its optical components portfolio. Browse our online store, read monthly notes about our featured optical products or just send us your requirements or product ideas. 

Axicon Lens Axicon lens also known as conical lens or rotationally symmetric prism is widely used in different scientific research and application. Axicon can be used to convert a parallel laser beam into a ring, to create a non diffractive Bessel beam or to focus a parallel beam into long focus depth. Del Mar Photonics supplies axicons with cone angles range from 130° to 179.5° for use with virtually any laser radiation. We manufacture and supply axicons made from BK7 glass, fused silica and other materials. buy online - download brochure

Rutile (TiO2) coupling prisms Del Mar Photonics offers optical elements made of high quality synthetically grown Rutile Titanium Dioxide crystals. Rutile’s strong birefringency, wide transmission range and good mechanical properties make it suitable for fabrication of polarizing cubes, prisms and optical isolators. Boules having high optical transmission and homogeneity are grown by proprietary method. Typical boules have 10 - 15 mm in dia. and up to 25 mm length. Optical elements sizes - from 2 x 2 x 1 mm to 12.7 x 12.7 x 12.7 mm. Laser grade polish quality is available for finished elements. So far we the largest elements that we manufactured are 12 x15 x 5 mm, in which optical axis is parallel to 15 mm edge, 5 mm is along beam path, 12 x 15 mm faces polished 20/10 S/D, one wave flatness, parallelism < 3 arc.min. (better specs. available on request). more details - buy online - download brochure

Vacuum viewport Del Mar Photonics offer a range of competitively priced UHV viewports , Conflat, ISO or KF including a variety of coatings to enhance performance. Del Mar Photonics viewports are manufactured using advanced techniques for control of special and critical processes, including 100 percent helium leak testing and x-ray measurements for metallization control. Windows Materials include: Fused silica, Quartz , Sapphire , MgF2, BaF2, CaF2, ZnSe, ZnS, Ge, Si, Pyrex. Standard Viewing diameters from .55" to 1.94 ". Coating - a range of custom coatings can applied - which include - Single QWOT - Broad Band AR - V coatings - ITO - DLC (Diamond like coating) more details - request a quote

Manufacturing challenging optical components Our group works to characterize the interaction of biomolecules with solid surfaces, writes Dennis Hore of University of Victoria, Canada.  Nature designs proteins with well-defined structures in solution.  The conformation of these molecules may serve a structural purpose, or a chemical one in the case of enzymes.  In order to further the progress of technologies that immobilize such molecules on synthetic surfaces (like biosensors employing enzymes), it is important to have a detailed understanding and control of the interactions of these molecules with the surface more For that project Del Mar has been able to manufacture all shapes of prisms from CaF2, fused silica, and ZnSe according to our custom specifications. Del Mar Photonics online store features windows, prisms, lenses, attenuators, etalons, crystals and wafers, and other items. Axicons, barium fluoride windows, germanium etalons, rutile (TiO2) prisms, microchannel plates and detectors, saturable absorber mirrors, photoconductive THz antennas, lithium niobate wafers and crystals and many other high quality affordable components for scientific research and OEM production are delivered globally from stock. Micro Prism from Del Mar Photonics - Concentrating Photovoltaics

We are looking forward to hear from you and help you with your optical and crystal components requirements. Need time to think about it? Drop us a line and we'll send you beautiful Del Mar Photonics mug (or two) so you can have a tea party with your colleagues and discuss your potential needs

Trestles LH femtosecond lasers with integrated DPSS DMPLH laser pump - DPSS DMPLH lasers