Melles Griot

2 weeks ago | photonicsonline.com | John Oncea |Hongbai Lao |Melles Griot

Photonic gap materials, or photonic crystals, are structures with a periodic dielectric profile that prevent light from propagating at certain wavelengths. This creates a "gap" where light cannot travel, offering potential for optical devices like filters and waveguides.

3 weeks ago | photonicsonline.com | John Oncea |Opto Diode |Gentec Electro-Optics |Melles Griot

SPIE Optics + Photonics 2025 – hear latest advances in sunny San DiegoAttend the optical science and technologies meeting offering a dozen plenary presenters, 52 conferences, over 2,600 presentations, 30 courses, a 3-day exhibition, professional development events, and networking opportunities. Hear the latest research shared in optical engineering, nanotechnology, quantum science, organic photonics, and astronomical applications. August 3-7, San Diego, California, USA – Learn more.

1 month ago | photonicsonline.com | John Oncea |Melles Griot |Rick Brown |Jason Palidwar

Cryogenic cooling boosts IR tech by reducing thermal noise in detectors, enabling higher sensitivity and precision in fields from astronomy to military imaging. Precision IR Narrow And Dual Bandpass Filters With Low OH-Band AbsorptionAlluxa’s new precision infrared bandpass and dual bandpass filter technology brings new levels of performance with higher transmissions than traditional evaporated coatings.

1 month ago | photonicsonline.com | John Oncea |Melles Griot |Jason Palidwar |Claude Montcalm

ESA’s CryoSat-2 and NASA’s ICESat-2 satellites track Greenland’s melting ice with precise radar and laser data, revealing rapid ice loss and aiding climate change research. SPOTLIGHT ON ENVIRONMENTAL SENSINGOptical Profilers In An Argon Chamber EnvironmentZygo Optical Profilers now operate within argon gloveboxes, enabling high-precision, non-contact metrology in inert environments, preserving sensitive materials, and advancing research.

1 month ago | photonicsonline.com | John Oncea |James Mackay |Melles Griot |Emily Newton

Neuromorphic computing uses principles from neuroscience to create devices that mimic neural systems, achieving efficient brain-like processing. It combines photonics and neuromorphic architectures for high efficiency and connectivity. More Signal, Less Background: Improving Signal To Noise RatioThe path to improving signal-to-noise ratio - the ratio of the power of signal (desired input) to the power of background noise (undesired input) - is to reduce the power of the noise – less background.