Source for ultrafast continuum infrared and terahertz radiation
نویسندگان
چکیده
منابع مشابه
A Source for Ultrafast Continuum Infrared and Terahertz Radiation
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متن کاملSource for ultrafast continuum infrared and terahertz radiation.
A compact and stable method for generating high-intensity linearly polarized continuum mid-IR and terahertz light using ultrafast femtosecond (fs) laser pulses is demonstrated. Continuous light generation from <400 cm(-1) (12 THz, 25 microm) to >3300 cm(-1) (100 THz, 3 microm) in a sub-100 fs laser pulse is facilitated by nonlinear mixing of the fundamental, second harmonic, and third harmonic ...
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THz continuum spectral photometry has new and unique applications in different civil and military areas presenting a number of distinctive advantages on the well known microwaves or midto near-infrared technologies. THz sensing is essential to investigate the emission mechanisms by high energy particle acceleration processes. Technical challenges appear to diagnose radiation produced by solar f...
متن کاملGeneration of ultrafast terahertz radiation pulses on metallic nanostructured surfaces.
A resonant "incoherent" rectification process is presented relying on the excitation of surface plasmons on a nanostructured metal surface. Excitation of gold and silver films with 800-nm femtosecond laser pulses results in the emission of terahertz radiation with an angle-dependent efficiency and an approximately third-order power dependence. It is shown that the source of this terahertz pulse...
متن کاملQuantum Well Intersubband Transitions as a Source of Terahertz Radiation
| It is shown that unipolar quantum well systems have potential as sources of terahertz radiation. It is demonstrated that the electronic interactions within these systems must be manipulated in order to favour radiative emission rather than non-radiative loss. Designs are advanced for tunable emitters and optically excited terahertz lasers.
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ژورنال
عنوان ژورنال: Optics Letters
سال: 2010
ISSN: 0146-9592,1539-4794
DOI: 10.1364/ol.35.001962