Abstract: The rigorous diffraction boundary problem for a semitransparent slotted semi-infinite cone is considered. Slots are periodically cut along its generatrices from the cone tip. The source ...

Abstract: A method for creating a diffraction grating (DG) with an in situ variable parameter is proposed. The adaptive DG for operation in visible and IR wavelength consists of the 2D matrix of ...

The measure had no path forward in the Senate, where Democrats are all but certain to block it and Republicans have said they will not try to skirt filibuster rules to ram it through. By Annie Karni ...

This is read by an automated voice. Please report any issues or inconsistencies here. House Republicans approved legislation requiring voters to submit passport or birth certificates to register, ...

Four-time champion Max Verstappen has said cars in Formula 1's new generation are "anti-racing" and not fun to drive, comparing them to the all-electric series Formula E, but "on steroids." A sweeping ...