Terahertz scanning imaging with a subwavelength plastic fiber

Ja Yu Lu, Chui Min Chiu, Chung Chiu Kuo, Chih Hsien Lai, Hung Chung Chang, Yuh Jing Hwang, Ci Ling Pan, Chi Kuang Sun

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)


The feasibility to perform fiber-scanning terahertz imaging utilizing a terahertz subwavelength plastic fiber is investigated. Our study shows that, with a low (<1%) fractional power inside the fiber core, the bending loss of the terahertz subwavelength fiber is acceptable to enable large area scanning without seriously sacrificing the signal-to-noise ratio of the acquired image. With a transmission geometry, this feasibility is demonstrated by direct two-dimensional scanning of the terahertz subwavelength fiber output end to image different biological samples and concealed substances.

Original languageEnglish
Article number084102
JournalApplied Physics Letters
Issue number8
Publication statusPublished - 2008

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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