Rapid-phase modulation of terahertz radiation for high-speed terahertz imaging and spectroscopy

Autor:	Ivan Zorych, Zoi-Heleni Michalopoulou, John F. Federici, Alexander M. Sinyukov, David Zimdars, Zhiwei Liu, Dale E. Gary, Yew Li Hor, Robert Barat, Ke Su
Rok vydání:	2008
Předmět:	Materials science Terahertz radiation Infrared business.industry Lithium niobate Far-infrared laser Phase (waves) Atomic and Molecular Physics and Optics Terahertz spectroscopy and technology Photomixing chemistry.chemical_compound Optics chemistry business Phase modulation
Zdroj:	Optics letters. 33(14)
ISSN:	0146-9592
Popis:	Rapid voltage-controlled phase modulation of cw terahertz (THz) radiation is demonstrated. By transmitting an infrared beam through a lithium niobate phase modulator the phase of the THz radiation, which is generated by the photomixing of two infrared beams, can be directly modulated through a 2pi phase shift. The 100 kHz modulation rate that is demonstrated with this technique is approximately 3 orders of magnitude faster than what can be achieved by mechanical scanning.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6bd38a1bf082a7a11786349a376288e0 https://pubmed.ncbi.nlm.nih.gov/18628808 Zobrazit plný text záznamu