title: Generation of high-power terahertz pulses in a prism.
abstract: A compact, high-power emitter of half-cycle terahertz (THz) radiation is demonstrated. The device consists of an epitaxial InAs emitter upon a GaAs prism and produces THz pulses that are 20 times more powerful than those from conventional planar InAs emitters. This improvement is a direct result of reorienting the transient THz dipole such that its axis is not perpendicular to the emitting surface.
authors.forename: M B
authors.initials: MB
authors.lastname: Johnston
authors.forename: D M
authors.initials: DM
authors.lastname: Whittaker
authors.forename: A
authors.initials: A
authors.lastname: Dowd
authors.forename: A G
authors.initials: AG
authors.lastname: Davies
authors.forename: E H
authors.initials: EH
authors.lastname: Linfield
authors.forename: X
authors.initials: X
authors.lastname: Li
authors.forename: D A
authors.initials: DA
authors.lastname: Ritchie