Deformation corrected real-time terahertz imaging | Zendy

Toshiaki Hattori | Zendy; Masaya Sakamoto | Zendy

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Deformation corrected real-time terahertz imaging

Author(s) -

Toshiaki Hattori,

Masaya Sakamoto

Publication year - 2007

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.2752543

Subject(s) - terahertz radiation , birefringence , materials science , optics , deformation (meteorology) , sampling (signal processing) , residual , optoelectronics , physics , computer science , algorithm , detector , composite material

The authors have developed a method of real-time terahertz imaging in which image deformation due to nonuniformity of residual birefringence in the electro-optic (EO) sampling crystal is corrected. Real-time terahertz imaging using intense terahertz pulses and two-dimensional EO sampling can suffer from birefringence nonuniformity of the EO crystal since the birefringence is explicitly used for the linear detection of the terahertz field. In the proposed method, the distribution of the residual birefringence of the EO crystal is measured and used for image correction. Deformation-free images of the spatial profile of a focused terahertz pulse were obtained

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