Featured Editorial
Visualizing Growth In Hyperspectral Imaging: A Q&A With TruTag CTO Hod Finkelstein
By Marissa Stonefield

Dr. Finkelstein discussed with Photonics Online how his experience in the medtech and RF industries helped inform decisions when creating new HSI technologies. He offered insight into maintaining balance in the growth of both optical and data processing technologies for HSI, and discussed development of TruTag’s Prism Award-winning hyperspectral imaging solution.

Featured Article
Revealing Cotton’s Fiber Quality With Hyperspectral Imaging
By Jeff MacCubbin and Mike Zemlan, BaySpec, Inc.

Hyperspectral imaging can be employed either remotely or in-process, and it is commonly used to monitor production to control product quality and output. Traditionally, hyperspectral imaging systems or cameras have been bulky, heavy, and costly. However, recent technological advances are changing that and opening the door to new opportunities in hyperspectral imaging.

Spotlight On Hyperspectral Imaging
Assessing Infrared Spectrum Hyperpixel Array Imagers For Measuring Temperature In Additive And Subtractive Manufacturing
By Eric Whitenton et al, National Institute of Standards and Technology (NIST)

This white paper discusses the use of infrared spectrum hyperpixel array imagers in additive and subtractive manufacturing temperature measurement, the issues that are involved, and the results of multiple analyses on the method.

Volcanic Eruption Observations From An Elevated Point Of Stromboli Using Thermal Infrared Hyperspectral Imaging

Research on different indicators of imminent volcanic eruptions is carried out on an ongoing basis, especially with volcanoes located close to urban areas. This app. note highlights the benefits of using standoff infrared hyperspectral imaging for characterizing volcanic process.

Hyperspectral Imaging and Laser Beam Profiling: Xeva-2.35-320

The Xeva-2.35-320 is the industry’s smallest TE4-cooled SWIR camera. It’s compatible with spectrometers and is an ideal solution for art inspection, hyperspectral imaging, R&D applications in the SWIR range, laser beam profiling (1.0 to 2.35µm), and high temperature thermography.

Scientific CMOS Cameras: pco.edge CLHS 5.5

The new pco.edge 5.5 Camera CLHS series includes low noise of 1.0 electrons, 2560 x 2160 pixel resolution, high dynamic range of 30 000:1, high quantum efficiency greater than 60%, and high speed of 100 fps.

High Resolution InGaAs And Vis-InGaAs SWIR Area Cameras

The large format 640 x 512 pixel 640SDV-1.7RT InGaAs room temperature solid-state camera allows users to capture images in the Short Wave Infrared (SWIR) range of 0.9 to 1.7 µm, and the SU640SDV Vis- 1.7RT expands the range to the visible, from 0.4 to 1.7 μm. 

First Surface Mirrors
By Abrisa Technologies

Conventional mirrors are constructed with a glass protective surface and a “silvering” second surface. In high precision applications, these second surface mirrors have distinct disadvantages such as refracted or bent images, loss of energy, and a dim and distorted reflection.

Introduction To Silicon Photomultipliers (SiPMs)
By First Sensor AG

Silicon Photomultipliers (SiPMs) are radiation detectors designed with extremely high sensitivity, high efficiency, and very low time jitter. The technology is based on reversed biased p/n diodes, making them capable of direct light detection ranging from near ultra violet to near infrared. 

Ultraviolet Transmitting, Visible Absorbing Filters

Hoya offers dark glass (nearly black) filters that are capable of transmitting the ultraviolet region and absorbing the visible region. These filters are ideal for single extraction of ultraviolet rays, and are often utilized for selectively transmitting the 253.7 nm and 365 nm wavelengths.

Fast Wavelength Meter Precisely Maps Laser's Tuning Behavior

The 828B High-Speed Optical Wavelength Meter from Bristol Instruments is designed to provide accurate wavelength information at an unprecedented rate of 1 kHz. It revolutionizes WDM wavelength testing applications by reducing test times from hours to minutes. 

Featured Multimedia
The Challenges Of Using And Manufacturing Optical Filters In Earth-Observation

Optical filters play a key part in providing wavelength selections in earth-observation systems, but they provide a unique challenge in space-based applications. At Photonics West 2017, Jason Palidwar with Iridian Spectral talked to us about some of those challenges, and how his organization has addressed them.

Bulletin Board
Anti-Reflective (AR) Optical Coatings for Biomedical / Life Sciences Applications

Precision Glass & Optics (PG&O), global experts in optical manufacturing and precision thin film coatings, offer anti-reflective (AR) optical coatings for biomedical and life sciences applications. Ideal for coating on quartz, BK-7, glass, and a wide variety of other optical materials, the reliable AR coatings improve performance in optical systems, increasing transmission and enhancing contrast.

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