Physicists in the US have demonstrated negative refraction at optical wavelengths for the first time. Vladimir Shalaev and colleagues at Purdue University obtained the result in a material consisting ...

Optical surface defect inspection and imaging techniques are pivotal to ensuring high-performance outcomes across a myriad of applications including semiconductor manufacturing, precision optics, and ...

Defect inspection scientists from Huazhong University of Science and Technology, Harbin Institute of Technology and The Chinese University of Hong Kong make a thorough review of new perspectives and ...

A research team led by Prof. Sergey Kharintsev has answered a long-standing question: why the refractive index of spatially confined media, such as quantum dots, nanocrystals and thin films, can ...

Defects are responsible for many well-known processes: plastic deformations and fracture in metals are governed by dislocations, vortices in the atmosphere show up as tornadoes, disclinations in ...

To determine the morphologic features of the optic disc and the location of visual field (VF) defect in relation to posterior staphyloma in normal tension glaucoma (NTG) eyes with myopia. We enrolled ...

Late last year, lasers were used for the first time to transmit data between orbiting satellites. But as the photonics revolution begins to extend into the harsh environments of the space and nuclear ...

Please provide your email address to receive an email when new articles are posted on . It is a truism that, “If you operate, you will have complications.” Wise surgeons plan ahead to avoid ...