As photonics technology becomes increasingly sophisticated, optical measurements grow increasingly complex. To make reliable measurements, one must consider the characteristics and interactions of ...

Patterning challenges for the semiconductor industry are growing as the number of multi-patterned layers being used in the 10nm and beyond nodes increase. Patterning requires highly accurate overlay ...

Optical non-contact profilers are interference microscopes used to accurately measure the three-dimensional height variations on surfaces of a given test material. Optical profilers manipulate the ...

With the continuous advancement of photoelectric performance in major equipment and advanced instruments, traditional optical elements are increasingly inadequate to meet the demands of modern systems ...

Measuring super smooth surfaces generally necessitates the use of optical metrology tools, but it is important to note that optical solutions are not all the same. The choice of metrology solution for ...

Large-aperture interferometers are important in the manufacturing and measurement of large-aperture optical elements, which play critical roles in the fields of optical precision manufacturing and ...

Scientists have demonstrated the fastest distance measurement so far. The researchers demonstrated on-the-fly sampling of a gun bullet profile with micrometer accuracy. The experiment relied on a ...

A European collaboration has used one of the world's portable optical atomic clocks to measure gravitation for the first time. A European collaboration involving clock experts from the National ...

The Korea Research Institute of Standards and Science has successfully developed a length measurement system that achieves a level of precision approaching the theoretical limit allowed by quantum ...

No audio available for this content. Photo: Topcon Positioning Group Topcon Positioning Group announces a new technology — Hybrid Positioning — that increases efficiencies and improves productivity on ...