Nanocrystalline cellulose for covert optical encryption

Proceedings of SPIE - The International Society for Optical Engineering

Volumn 8258, Issue , 2012, Pages

  Zhang, Yu Ping ^a   Chodavarapu, Vamsy P ^a   Kirk, Andrew G ^a   Andrews, Mark P ^a  

^a MCGILL UNIVERSITY   (Canada)

Author keywords

chiral nematic; circular dichroism; encryption; iridescence; liquid crystal; nanocrystalline cellulose

Indexed keywords

ANTI-COUNTERFEITING; AQUEOUS PHASE; CHIRAL NEMATICS; CIRCULAR DICHROISM SPECTROPOLARIMETRY; CIRCULAR POLARIZERS; DOMAIN STRUCTURE; IRIDESCENCE; LOW CONCENTRATIONS; NANOCRYSTALLINE CELLULOSE; OPTICAL ACTIVITY; OPTICAL BRIGHTENING AGENTS; OPTICAL ENCRYPTION; OPTICAL RESPONSE; PHYSICAL STRUCTURES; POLARIZED OPTICAL MICROSCOPY; SOLID FILMS; SPRUCE PULPS; THIRD LEVEL; ULTRA-VIOLET; UV FLUORESCENCE; VISIBLE LIGHT; ZETA POTENTIAL ANALYSIS;

CELLULOSE DERIVATIVES; CHROMOPHORES; DICHROISM; FILMS; FLUORESCENCE; LIGHT SOURCES; LIQUID CRYSTALS; OPTICAL MICROSCOPY; PULP MATERIALS; SUSPENSIONS (FLUIDS); ZETA POTENTIAL;

CRYPTOGRAPHY;

CELLULOSE; CELLULOSE DERIVATIVES; CHROMOPHORES; CIRCULAR DICHROISM; DISPERSIONS; FLUORESCENCE; IRIDESCENCE; LIQUID CRYSTALS; MICROSCOPY; MONOLAYERS; PULPS; ZETA POTENTIAL;

EID: 84863360072     PISSN: 0277786X     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1117/12.906770     Document Type: Conference Paper

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