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July 11, 2011  

ATFilms’ High Reflectivity Mirrors Now Available Exclusively from Semrock

Semrock, Inc. now offers ultra-high performance cavity ring down mirrors produced by ATFilms. The high-reflectivity mirrors are manufactured with the most current ion beam sputtering technology for use in demanding laser applications. Mirrors have reflectivities ranging from > 99.97% to > 99.999% depending on wavelength and can be used for cavities with finesses of more than 300,000 (wavelength dependent). ATFilms is known for their market-leading substrate polishing capabilities which when combined with the hard coated film allow for mirrors with very low absorption scatter losses (as low as 1ppm) and high laser damage threshold levels.

“We are excited to now be able to offer our products to a wider market through Semrock. This is a new sales channel for us and we are pleased to be able to work with Semrock on this venture,” said Ramin Lalezari, ATFilms President and CTO.  

“ATFilms products are made with such precision, we are delighted to be able to be the exclusive catalog distributor for them. Our laser using customers will be able to order the mirrors online directly from us,” said Turan Erdogan, Semrock CTO.  Semrock and ATFilms are a part of the new IDEX Optics and Photonics division.

Please visit www.semrock.com to order these mirrors or for additional product specification information including downloadable ASCII data.  Order these mirrors by noon (EST) and have them shipped out the same day, guaranteed with Semrock’s 30-day no-hassle return policy and covered by the five-year warranty for all catalog parts.



ATFilms, a Unit of IDEX Optics and Photonics, manufactures high-end laser mirrors and coatings with custom specifications using the highest level of engineering expertise available in the field today. Led by a team of highly experienced engineers, they offer laser coating engineering expertise for the most demanding custom applications.  ATFilms’ innovative hard coatings are made possible by combining modern ion-beam sputtering techniques with proprietary volume manufacturing technology.

Founded in July 2002, ATFilms is based in Boulder, CO.  In January 2011, ATFilms became a Unit of IDEX Corporation.  For additional information about ATFilms and its products, visit the company website at www.atfilms.com.


Semrock, Inc., a Unit of IDEX Optics and Photonics, manufactures optical filters that set the standard in performance and reliability for the biotech and analytical instrumentation industries, as well as innovative optical filters for more general laser and optical systems applications.  All Semrock optical filters are made with hard ion-beam-sputtered optical coatings. OEM filters are manufactured in volume.  End-users benefit from a wide selection of standard catalog products that ship from stock.  Semrock’s patented and patent-pending products include its highly acclaimed BrightLine® fluorescence filters, state-of-the-art filters for Raman spectroscopy, and other unique filters for lasers and optical systems.  Semrock’s innovative products, made possible by combining modern ion-beam sputtering with Semrock’s proprietary volume manufacturing technology, are covered under a five-year warranty.

Founded in September 2000, Semrock is based in Rochester, New York, a well-known center of optics, and has sales offices throughout the United States.  In October 2008 Semrock became a Unit of IDEX Corporation.  For additional information about Semrock, its products, and its team of international distributors, visit the company website at www.semrock.com.

Amanda Valek-MacDonald
Semrock, a Unit of IDEX Optics and Photonics