Invisible Security Printing on Photoresist Polymer Readable by Terahertz Spectroscopy

We experimentally modulate the refractive index and the absorption coefficient of an SU-8 dry film in the terahertz region by UV light (362 nm) exposure with time dependency. Consequently, the refractive index of SU-8 film is increased by approximately 6% after UV light exposure. Moreover, the absor...

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Detalles Bibliográficos
Autores principales: Shin, Hee Jun, Lim, Min-Cheol, Park, Kisang, Kim, Sae-Hyung, Choi, Sung-Wook, Ok, Gyeongsik
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5750789/
https://www.ncbi.nlm.nih.gov/pubmed/29210982
http://dx.doi.org/10.3390/s17122825

Internet

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5750789/
https://www.ncbi.nlm.nih.gov/pubmed/29210982
http://dx.doi.org/10.3390/s17122825

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