|Infrared sensing using nanocrystal toward on demand light matter coupling 06 May|
New Imaging Technology
Nanocrystals are semiconductor nanoparticles whose optical properties can be tuned from UV up to THz. They are used as sources of green and red light for displays, and also show exhibit promises to design low-cost infrared detectors. Coupling subwavelength optical resonators to nanocrystals film enables to design photodiodes that absorb 80% of incident light from thin (<150 nm) nanocrystal film. It thus becomes possible to overcome the constraints linked to the short diffusion lengths which result from transport by hopping within arrays of nanocrystals enabling high photoresponse detector operating in the SWIR range.
|5 Applications of Gratings 29 Apr|
Diffraction gratings that operate in transmission can be used for many different applications, providing high efficiency, low stray light, and a range of dispersion options from 150-5000 lines/mm and operating at wavelengths 300-2500 nm. They also enable more compact, lens-based designs. Here, we review the top 5 most popular applications we see at Wasatch Photonics, and how our VPH transmission gratings excel at each.
|The Solution to Coating DLC on Chalcogenides 29 Apr|
Coating chalcogenides with DLC is notoriously challenging and requires specialized technical expertise to meet the high performance and durability demands of IR applications
|Realistic Optical System Tolerancing: A Practical Example 28 Jan|
While lens design software can assist with tolerancing, complex and/or critical optical systems require expertise beyond the software’s basic functionality. We represent tolerancing of optical systems as close to reality as possible by utilizing the most advanced tolerancing tools both built into lens design software and of our own creation
|Light engine operating lifetime Robustness, Reliability, Longevity in Maintenance-free lighting 11 Nov 2020|
Estimates of the operational lifetimes of solid-state light sources ranging from 10,000–50,000 hours of light output are frequently cited in research and commercial publications. However these estimates are often derived from performance data for single light emitting diodes (LEDs) and are not necessarily representative of integrated light engines in typical working environments. This white paper provides operating lifetime estimates for Lumencor’s solid-state light engines based on analysis of service history data.
|Single Crystal Orientation Laue System For Gallium Phosphate for High Precision Piezoelectric Sensors 06 Nov 2020|
Latest article from Christian Roethel at Piezocryst to find out how the Photonic Science Laue system is used for precision crystal orientation for piezoelectric sensors. Christian Roethel, has a PhD in X-ray Diffraction from the Technical University of Graz. He joined PIEZOCRYST ADVANCED SENSORICS GMBH in 2018 as the head of sales and the product management team. Christian is involved in the products from conception through to sales and marketing and is the applications expert. Piezocryst, are part of the AVL group, who are focused on the development of combustion engines and more recently electric engines for the automotive industry.
|CONCENTRIC MOUNT FOR OFF-AXIS PARABOLA ALIGNMENT 05 Nov 2020|
OAPs have many advantages because they can focus without aberrations; but are notoriously difficult to align. We present a method and mount for accurate alignment to any coordinate system.
|Room Temperature Terahertz Frequency Comb Using Quantum Cascade Lasers 22 Oct 2020|
Wavelength Electronics’ QCL LAB Driver and PTC temperature controller provide the high-precision and ultra-low noise current and temperature stability needed for harmonic frequency combs.
|Learn about a novel narrow-linewidth 785 nm laser and how it can be used in low-frequency Raman spectroscopy, especially for inspection of pharmaceutical products. 01 Oct 2020|
Being able to access the low-frequency region in Raman spectroscopy promises better insight into the detailed composition of pharmaceutical drugs and also stronger Raman signal levels. In this white paper we introduce a stable narrow-linewidth laser source at 785 nm and discuss the performance required to address low frequency Raman spectroscopy needs.
|In vivo NIR-II Small Animal Imaging with C-RED 2 14 Sep 2020|
In vivo NIR-II Small Animal Imaging with C-RED 2 – high-speed and sensitive imaging of ICG in vivo distribution in a nude mouse
|Two-photon fluorescence microscopy - imaging of invitrogen fluocells, kidney, liver and collagen. 10 Sep 2020|
The Chromacity 1040 provides the perfect balance of peak-power, pulse duration and average power for generating images of biological samples through a two-photon non-linear process.
|What’s in a GRISM? Uses & Advantages 26 Aug 2020|
Combining a GRating and prISM allows light to be dispersed while canceling out beam deviation to enable in-line optical layouts ideal for compact spectral imaging. But the advantages don’t stop there. In this tech note, we’ll share 5 tips & tricks we’ve learned about grisms to get the most out of your next optical design.