TY - JOUR
T1 - Enhanced χ(3) in γ-ray irradiated bulk glass
AU - Isbi, Yuval
AU - Sternklar, Shmuel
AU - Granot, Er'el
AU - Boehm, Lea
N1 - Funding Information:
The authors thank the Israeli Ministry of Science for their support under Infrastructure project no. 8527-1-95.
PY - 2001/7/1
Y1 - 2001/7/1
N2 - The non-linear coefficient χ(3)(ω, ω, 0, 2ω) of γ-ray irradiated (up to 1.7 Mrad) light-flint silicate bulk glass (Schott glass LF5) was measured. The process involves four wave mixing which produces the second harmonic (2ω) from a glass sample irradiated with the fundamental beam at ω while applying a DC electric field. A theoretical model which accounts for absorption at 2ω is developed and an experimental method is employed to determine the non-linear coefficients in the presence of phase mismatch. It is shown that the non-linearity is enhanced as a function of the gamma irradiation and the color centers formation.
AB - The non-linear coefficient χ(3)(ω, ω, 0, 2ω) of γ-ray irradiated (up to 1.7 Mrad) light-flint silicate bulk glass (Schott glass LF5) was measured. The process involves four wave mixing which produces the second harmonic (2ω) from a glass sample irradiated with the fundamental beam at ω while applying a DC electric field. A theoretical model which accounts for absorption at 2ω is developed and an experimental method is employed to determine the non-linear coefficients in the presence of phase mismatch. It is shown that the non-linearity is enhanced as a function of the gamma irradiation and the color centers formation.
KW - Color centers
KW - Electric-field induced second harmonic generation
KW - Non-linear coefficient
KW - γ-irradiated glass
UR - http://www.scopus.com/inward/record.url?scp=0035399184&partnerID=8YFLogxK
U2 - 10.1016/S0030-4018(01)01188-9
DO - 10.1016/S0030-4018(01)01188-9
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AN - SCOPUS:0035399184
SN - 0030-4018
VL - 194
SP - 213
EP - 216
JO - Optics Communications
JF - Optics Communications
IS - 1-3
ER -