Abstract
We have observed extraordinarily large optical nonlinearity in Methyl Red-doped nematic liquid-crystal film. Grating diffraction can be generated with an optical intensity as low as 40 μW/cm2, and a refractive-index change coefficient of more than 6 cm2/W is obtained. The effect is attributed to formation of an optically induced dc space-charge field and to the resulting reorientation of the highly birefringent nematic director axis.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 253-255 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 23 |
| Issue number | 4 |
| DOIs | |
| State | Published - Feb 15 1998 |
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All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
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Optically induced space-charge fields, dc voltage, and extraordinarily large nonlinearity in dye-doped nematic liquid crystals. / Khoo, Iam-choon; Slussarenko, S.; Guenther, B. D.; Shih, Min Yi; Chen, P.; Wood, W. V.
In: Optics Letters, Vol. 23, No. 4, 15.02.1998, p. 253-255.Research output: Contribution to journal › Article
TY - JOUR
T1 - Optically induced space-charge fields, dc voltage, and extraordinarily large nonlinearity in dye-doped nematic liquid crystals
AU - Khoo, Iam-choon
AU - Slussarenko, S.
AU - Guenther, B. D.
AU - Shih, Min Yi
AU - Chen, P.
AU - Wood, W. V.
PY - 1998/2/15
Y1 - 1998/2/15
N2 - We have observed extraordinarily large optical nonlinearity in Methyl Red-doped nematic liquid-crystal film. Grating diffraction can be generated with an optical intensity as low as 40 μW/cm2, and a refractive-index change coefficient of more than 6 cm2/W is obtained. The effect is attributed to formation of an optically induced dc space-charge field and to the resulting reorientation of the highly birefringent nematic director axis.
AB - We have observed extraordinarily large optical nonlinearity in Methyl Red-doped nematic liquid-crystal film. Grating diffraction can be generated with an optical intensity as low as 40 μW/cm2, and a refractive-index change coefficient of more than 6 cm2/W is obtained. The effect is attributed to formation of an optically induced dc space-charge field and to the resulting reorientation of the highly birefringent nematic director axis.
UR - http://www.scopus.com/inward/record.url?scp=0141664150&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0141664150&partnerID=8YFLogxK
U2 - 10.1364/OL.23.000253
DO - 10.1364/OL.23.000253
M3 - Article
VL - 23
SP - 253
EP - 255
JO - Optics Letters
JF - Optics Letters
SN - 0146-9592
IS - 4
ER -