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Editor's Note

Continuing the tradition of bringing innovative products to its customers, Semrock has recently launched VersaChrome Edge™ Tunable filters that unlock virtually unlimited spectral tuning capability. These filters can be used to optimize spectral edges and bandwidths to improve signal-to-noise ratio, to reduce bleedthrough, or for hyperspectral imaging, for example.

Our own Jay Anzellotti shares insight into Semrock’s culture and what makes us the market leader. In the feature article on VersaChrome Edge filters lead author Dr. Craig Hodgson provides an in-depth review of this technology and its implications.

We are happy to announce that we have now shipped over 2 million filters. Thank you for your continued support. Stay tuned for exciting new products from Semrock early next year.

Kind regards,
Prashant Prabhat

An Interview With...

Jay Anzellotti, Principal Coatings Engineer at Semrock. We sat down with a Semrock veteran to learn how Semrock has evolved over the last 15 years, and to find out what keeps him working here.

Feature Article

Unlimited Spectral Tuning Using VersaChrome Edge Filters
Our VersaChrome Edge Tunable Filters allow both researchers and instrument developers to dynamically create and optimize their own edge or bandpass filter shapes by combining three simple, versatile filters. Continue reading… 

Tips & Techniques

Preventing excitation light leakage into emission channel
When the cross-over edges of the excitation and emission filters of a mix-and-match filter set overlap, the excitation light can leak into the emission channel, thereby compromising image signal-to-noise ratio (b-c). Learn more about optimizing the performance of LED light engines in our article featured in Laser Focus WorldLearn more...

Ask our Experts

MyLight  puts the power of optical filter theory data modeling and evaluation at your fingertips. 
Learn more...

To access MyLight, look for this button at the top of every filter graph.

New At Semrock

As a part of the excellent service that we wish to provide to our online customers, we have extended our Free Shipping into November for all the lower 48 states. This is automatically done for your order at checkout.

VersaChrome Edge™ Tunable filters are now available in the online Semrock Catalog. Any edge or a bandpass filter can be created on-the-fly, by a combination of a tunable long-pass and a tunable-short pass filter. 
Learn more... 

Editor, Prashant Prabhat, Ph.D.
Semrock Catalog, Business Line Leader

In this Issue:

Editor's Note

An Interview With

Feature Article

Tips & Techniques

Ask our Experts

Links We Like

New at Semrock

Did you Know?

Meet Our Team


Download a Catalog

Access Semrock White Paper Library


Download A Semrock Catalog

Download the current PDF version, or request a mailed copy, however you prefer to choose your optics.

Access the Semrock White Paper Library

Take advantage of our extensive online technical information. 


Links We Like

Did You Know

The Semrock site now also offers a custom sizing calculator, improved site search, and a faster ordering process. We’ve made filter set selection by fluorophore even easier with our online Fluorophore Lookup Page. We’ve already reviewed and pre-matched our sets to popular fluorophores to make selection faster and headache free.  Just find your fluorophore, and click on the link to instantly see our top picks for your choice. Click here to explore...

Meet our Team

(left to right) Teresa Calkins, Tracy Kuriatnyk, Linda Kohler, Jamie Dargan


SearchLight™ now features 600+ fluorophores and dyes including all commercially available Brilliant™ Ultraviolet and Violet dyes from BD Biosciences, and Brilliant Violet dyes for BioLegends.

Are you familiar with our SearchLight tool? See our latest tutorial video that provides an introduction to SearchLight. Learn More …