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optical filters White Papers
MKS Newport Spectral Optics Product Overview
MKS Newport spectral optics product overview providing a summary of competencies in diffraction gratings, optical filters, optical mirrors, OptoFlash multichannel spectrometer engines, and design & assembly for optical sub-systems.
Multi-Bandpass Filters for Fluorescence
Learn how multi-bandpass filters combined with multiple LEDs can enable versatile and compact fluorescence instrumentation.
ODiate Optical Filters
MKS Newport delivers best-in-class optical performance with ODiate optical filters for life & health science applications, medical instrumentation, and chemical or material analyses.
Dual-Band Infrared Bandpass Filters
Dual-Band IR filters for the MWIR and LWIR provide high performance in-band and out-of-band.
“Fingerprint” vs Handheld Raman Applications and the Different Optical Filters That Enable Them
Raman spectroscopy is a powerful non-invasive, non-contact tool capable of identifying molecular constituents of samples. Wavelength selective optical filters are used to block the dominant Rayleigh scattered light and transmit only the Raman...
Modular Spectrometer Delivers High Performance in Compact Footprint
In this application note, we share spectra that demonstrate performance characteristics of the Ocean SR2, a modular UV-Visible spectrometer. We evaluate the effectiveness of the Ocean SR2 for measuring absorbance of optical filters and demonstrate...
Optical Filters and LED Illumination
Understanding the interplay of optical filters, microscope light source and fluorophore selection can be a complex task, especially when it comes to multi-channel imaging. However, the selection of each component can make or break a fluorescence...
The Most Common Optical Filters and Their Uses
Optical Filters are available in an array of choices and are employed for a wide and diverse range of applications. As a global supplier of stock and custom-made optics, Knight Optical runs through the most popular types and some of their typical...
Advances in Gain Flattening Filters
Gain flattening filters (GFFs), used to smooth out unequal optical signal intensities over a specified wavelength range in optical amplifiers, have evolved significantly over the past 20 years. While the packaging and materials utilized to construct...
High-Volume, Cost-Effective Uniform Deposition for Flat and Curved Optical Surfaces
To achieve thin film uniformity on flat surfaces, nearly every conventional physical vapor deposition (PVD) method requires masking, complex motion, or both. For curved surfaces, none of these methods are capable of delivering similar uniformities,...
High-Quality Molded Glass for Various Applications
The IHU series glass can transmit Ultra-Violet (UV) through the visible range.
Dispelling the Myths About Laminated Filters
There is a common belief that there is no longer a need for traditional bandpass optical filters. While this may be true in some cases, not all laminated filters are created equal. In this paper we will illustrate the advantages and disadvantages of...
Hybrid Gain Flattening Filters in Optical Fiber Amplifiers
Iridian Spectral Technologies has developed what is referred to as a Hybrid GFF, which combines the functionality of both a WDM and the GFF on one component. Specifically, a Hybrid GFF can block the pump laser from light in the range of...
Thin-Film Optical Components for Use in Non-Linear Optical Systems
Some of the greatest recent advances seen in bio-imaging and detection are due to techniques that utilize non-linear optical (NLO) phenomena. These techniques have led to a Nobel prize, super-resolution images, label-free visualization of naturally...
Next Generation Thin-Film Optical Filters for Life
Fluorescence based systems have revolutionized the way organisms, cells, and biomolecules are visualized and detected. However, challenges that are common in these instruments, such as bleedthrough, background autofluorescence, and poor...
Ultra-Narrowband Optical Bandpass Filters with Large Format and Improved Temperature Stability
Hard coated ultra-narrowband optical filters made using modern plasma processes offer much improved transmission, temperature stability and out of band blocking as compared to legacy soft coatings. These filters are used in optical systems as...
Measuring Optical Densities Over 10 Abs on the Agilent Cary 7000 Universal Measurement Spectrophotometer (UMS)
High blocking optical filters deliver critical optical control in a wide variety of consumer and industrial products. Highly attenuating (i.e., high optical density) filters are used in personal protective equipment, such as laser safety eyewear,...
Thin Substrate, Dichroic and Polychroic Thin Film Filters Featuring Flatness <0.1 Waves RMS
The filters used by fluorescence detection systems are arguably the most important element defining the system performance. Alluxa’s new line of thin substrate ultra-flat dichroics and polychroic filters provide improved optical performance, achieve...
New Metrology Techniques for Advanced Thin-Film Optical Filters
The performance of advanced thin films as demonstrated by Alluxa’s thin films are challenging even the best metrology equipment and techniques. In this paper we have described a number of simple techniques, such as reference beam attenuation,...
Super-resolution Microscopy
This article provides an overview of some of the key developments in super-resolution microscopy -- the art of enhancing the diffraction-limited resolution of an optical microscope.
How to measure optical filter spectra accurately
Optical filters play an important role in enabling applications such as fluorescence microscopy and Raman spectroscopy. In these applications there are two distinct types of beams: the illumination (or excitation) beam and the signal (or emission)...
(21 results found)
April 2024
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