optical filters

LLNL optical engineers Justin Wolfe (left) and Simon Cohen are seen through the 'r' filter (credit: Garry McLeod)

Look to the skies

A telescope, described as one of the world’s newest, has been completed following a project undertaken by researchers to develop some very specialist optical filters

How Delta Optical Thin Film is Meeting the Miniaturisation and Manufacturing Requirements of Today’s Optical Filters for Next-Generation Point of Care Devices

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The Point of Care (PoC) device market is growing rapidly and not just because of the effects of the recent pandemic. These instruments have various uses in medical diagnostics, including the detection of infectious diseases, testing haemoglobin levels and monitoring blood glucose levels. They are a popular choice for these types of tests as they only require a single drop of blood, saliva, or urine and can be performed by a GP within minutes.

Designing miniaturised custom optical filters without compromising on optical output for fluorescence-based POC devices

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Optical filters are a key component of any optical system. As the market for advanced imaging and diagnostic technologies continues to increase, there is a growing requirement for high-quality optical filters that are designed and manufactured to adhere to specific customer requirements. Delta Optical Thin Film is developing optical filters 
for next-generation Point-of-Care (PoC) devices.

A rendering of the experimental setup used. Light is reflected down to the nanostructure of molybdenum disulfide (yellow and teal lattice) and PZT (blue and green). Wavelengths reflecting from the surface are captured by the top detector as transmitted wavelengths pass through the PZT to the bottom detector. (Image: Hong et al.)

Smaller, more versatile optical filters on the horizon

Researchers could spur the development of smaller, more versatile optical filters that are especially adept at playing a trick of the light

Thin-film interference filters for lidar

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In order to keep up with the technology, LIDAR interference filters must be designed to maximize signal-to-noise ratios by reliably isolating the target LIDAR return signal. High performance LIDAR interference filters have greatly improved signal-to-noise ratios and reduced the need for multiple filtering techniques.

Small but mighty

Professor Emir Salih Magden updates on plans to commercialise an on-chip broadband optical filter

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