TY - JOUR
T1 - An improved procedure for fringe-locked photorefractive running hologram data processing
AU - Salazar, Ángel
AU - Lorduy G, Héctor
AU - Montenegro, Renata
AU - Frejlich, Jaime
PY - 2009
Y1 - 2009
N2 - We report a new improved procedure for experimental data fitting in photorefractive fringe-locked running hologram experiments. From this fitting we compute the diffusion length LD, the Debye screening length l s, and the quantum efficiency for photo-excitation of charge carriers Φ, with a lower degree of uncertainty than reported in previous publications. The procedure was successfully tried on an undoped B 12TiO20 (BTO) crystal and led to LD = 0.16νm, ls = 0.038νm, and Φ = 0.33, in good agreement with the already available information on this sample. The effectively applied electric field coefficient in the experiment was also estimated.
AB - We report a new improved procedure for experimental data fitting in photorefractive fringe-locked running hologram experiments. From this fitting we compute the diffusion length LD, the Debye screening length l s, and the quantum efficiency for photo-excitation of charge carriers Φ, with a lower degree of uncertainty than reported in previous publications. The procedure was successfully tried on an undoped B 12TiO20 (BTO) crystal and led to LD = 0.16νm, ls = 0.038νm, and Φ = 0.33, in good agreement with the already available information on this sample. The effectively applied electric field coefficient in the experiment was also estimated.
KW - Diffraction efficiency
KW - Fringe-locked holograms
KW - Photorefractive materials
UR - http://www.scopus.com/inward/record.url?scp=70449372491&partnerID=8YFLogxK
U2 - 10.1088/1464-4258/11/4/045201
DO - 10.1088/1464-4258/11/4/045201
M3 - Artículo en revista científica indexada
AN - SCOPUS:70449372491
SN - 1464-4258
VL - 11
JO - Journal of Optics A: Pure and Applied Optics
JF - Journal of Optics A: Pure and Applied Optics
IS - 4
M1 - 045201
ER -