Unusual terahertz waveforms from a resonant medium controlled by diffractive optical elements

Anton Pakhomov, R. M. Arkhipov, M. V. Arkhipov, A. Demircan, U. Morgner, N. N. Rosanov, I. Babushkin

Результат исследований: Научные публикации в периодических изданияхстатьярецензирование

15 Цитирования (Scopus)

Аннотация

Up to now, full tunability of waveforms was possible only in electronics, up to radio-frequencies. Here we propose a new concept of producing few-cycle terahertz (THz) pulses with widely tunable waveforms. It is based on control of the phase delay between different parts of the THz wavefront using linear diffractive optical elements. Suitable subcycle THz wavefronts can be generated via coherent excitation of nonlinear low-frequency oscillators by few-cycle optical pulses. Using this approach it is possible to shape the electric field rather than the slow pulse envelope, obtaining, for instance, rectangular or triangular waveforms in the THz range. The method is upscalable to the optical range if the attosecond pump pulses are used.

Язык оригиналаанглийский
Номер статьи7444
Страницы (с-по)7444
Число страниц12
ЖурналScientific Reports
Том9
Номер выпуска1
DOI
СостояниеОпубликовано - 15 мая 2019

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