Israel archaeologists find ancient comb with 'full sentence'

Israeli archaeologists have found an ancient comb dating back some 3,700 years ago and bearing what is likely the oldest known full sentence in Canaanite alphabetical script, according to an article published Wednesday.

A dual boost for optical delay scanning

Various applications of pulsed laser sources rely on the ability to produce a series of pulse pairs with a stepwise increasing delay between them. Implementing such optical delay scanning with high precision is demanding, ...

Dispersion coding of ENZ media via multiple photonic dopants

Media with small permittivity, i.e., the epsilon-near-zero (ENZ) media, have drawn a great deal of attention from the fields of physics, materials science, and engineering. The wavelength in ENZ medium is in principle infinitely ...

Tunable single-mode lasing on a high-Q resonator

Crystalline lithium niobate (LN) is considered the "silicon of photonics" because of its outstanding optical properties, including a broad transparency window and high piezoelectric, acousto-optic, second-order nonlinear, ...

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