title: Photochemically deposited surface relief gratings of an azo-dye-labeled phospholipid from the aqueous phase.
abstract: Surface relief holographic gratings are fabricated on the polybutadiene-coated walls of a cell filled with an aqueous solution of an azo-dye-labeled phospholipid. A low power (2 mW) 488 nm argon ion laser wavelength is used. Laser-excited azo dye reacts to produce a permanent surface-relief pattern on the polybutadiene substrate. Gratings are recorded for varying concentrations of the phospholipid solution as well as laser intensity. Lithographic masks are used to show that the photochemical pattern on the substrate is an exact replica of the light intensity distribution, and so the technique can be used for holographic recording as well as for biomolecular applications.
authors.affiliation: Department of Physics, Alabama A&M University, Normal, Alabama 35762, USA.
authors.forename: A
authors.initials: A
authors.lastname: Kassu
authors.forename: J M
authors.initials: JM
authors.lastname: Taguenang
authors.forename: A
authors.initials: A
authors.lastname: Sharma
mesh_terms: D001391:Azo Compounds / Q000737:chemistry*; D002070:Butadienes / Q000737:chemistry*; D004396:Coloring Agents / Q000737:chemistry*; D020724:Elastomers / Q000737:chemistry*; D007834:Lasers / Q000009:adverse effects; D018625:Microscopy, Atomic Force; D009930:Organic Chemicals / Q000737:chemistry; D010743:Phospholipids / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D001391:Azo Compounds; D002070:Butadienes; D004396:Coloring Agents; D020724:Elastomers; D009930:Organic Chemicals; D010743:Phospholipids; C028834:polybutadiene