Holographic grating formation in laser-deposited aluminium-doped zinc oxide and indium tin oxide films
Birgitte Thestrup; Carsten Dam-Hansen; Jørgen Schou; Per Michael Johansen; Birgitte Thestrup; Optics and Fluid Dynamics Department, Risø National Laboratory, DK-4000 Roskilde, Denmark; Carsten Dam-Hansen; Optics and Fluid Dynamics Department, Risø National Laboratory, DK-4000 Roskilde, Denmark; Jørgen Schou; Optics and Fluid Dynamics Department, Risø National Laboratory, DK-4000 Roskilde, Denmark; Per Michael Johansen; Optics and Fluid Dynamics Department, Risø National Laboratory, DK-4000 Roskilde, Denmark
Журнал:
Journal of Optics A: Pure and Applied Optics
Дата:
2000-05-01
Аннотация:
Holographic grating formation is demonstrated in films of the transparent and semiconducting materials aluminium-doped zinc oxide (AZO) and indium tin oxide (ITO) produced by pulsed laser deposition. The holographic gratings are induced by UV laser light at 356 nm. The physics and characteristics of grating formation in laser-deposited AZO and ITO films are compared with those of sputter-deposited indium oxide and ITO films, which have been previously used as holographic recorders. It is found that the optical response of laser-deposited AZO films are superior to that of ITO films. The AZO films exhibited an average transmission in the visible wavelength range of over 90%, and grating diffraction efficiencies of 3 × 10<sup>-6</sup> in 200 nm thick films.
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