TY - JOUR
T1 - Mechano-optic logic gate controlled by third-order nonlinear optical properties in a rotating ZnO:Au thin film
AU - Carrillo-Delgado, C.
AU - García-Gil, C. I.
AU - Trejo-Valdez, M.
AU - Torres-Torres, C.
AU - García-Merino, J. A.
AU - Martínez-Gutiérrez, H.
AU - Khomenko, A. V.
AU - Torres-Martínez, R.
N1 - Publisher Copyright:
© 2016 IOP Publishing Ltd.
PY - 2016/1
Y1 - 2016/1
N2 - Measurements of the third-order nonlinear optical properties exhibited by a ZnO thin solid film deposited on a SnO2 substrate are presented. The samples were prepared by a spray pyrolysis processing route. Scanning electron microscopy analysis andUV-Vis spectroscopy studies were carried out. The picosecond response at 1064 nmwas explored by the z-scan technique. A large optical Kerr effect with two-photon absorption was obtained. The inhibition of the nonlinear optical absorption together with a noticeable enhancement in the optical Kerr effect in the sample was achieved by the incorporation of Au nanoparticles into the ZnO film. Additionally, a two-wave mixing configuration at 532 nmwas performed and an optical Kerr effect was identified as the main cause of the nanosecond third-order optical nonlinearity. The relaxation time of the photothermal response of the sample was estimated to be about 1 s when the sample was excited by nanosecond single-shots. The rotation of the sample during the nanosecond two-wave mixing experiments was analyzed. It was stated that a non-monotonic relation between rotating frequency and pulse repetition rate governs the thermal contribution to the nonlinear refractive index exhibited by a rotating film. Potential applications for switching photothermal interactions in rotating samples can be contemplated. A rotary logic system dependent on Kerr transmittance in a two-wave mixing experiment was proposed.
AB - Measurements of the third-order nonlinear optical properties exhibited by a ZnO thin solid film deposited on a SnO2 substrate are presented. The samples were prepared by a spray pyrolysis processing route. Scanning electron microscopy analysis andUV-Vis spectroscopy studies were carried out. The picosecond response at 1064 nmwas explored by the z-scan technique. A large optical Kerr effect with two-photon absorption was obtained. The inhibition of the nonlinear optical absorption together with a noticeable enhancement in the optical Kerr effect in the sample was achieved by the incorporation of Au nanoparticles into the ZnO film. Additionally, a two-wave mixing configuration at 532 nmwas performed and an optical Kerr effect was identified as the main cause of the nanosecond third-order optical nonlinearity. The relaxation time of the photothermal response of the sample was estimated to be about 1 s when the sample was excited by nanosecond single-shots. The rotation of the sample during the nanosecond two-wave mixing experiments was analyzed. It was stated that a non-monotonic relation between rotating frequency and pulse repetition rate governs the thermal contribution to the nonlinear refractive index exhibited by a rotating film. Potential applications for switching photothermal interactions in rotating samples can be contemplated. A rotary logic system dependent on Kerr transmittance in a two-wave mixing experiment was proposed.
KW - Nanosystems
KW - Nonlinear optics
KW - Optical properties of thin films
UR - http://www.scopus.com/inward/record.url?scp=84956480607&partnerID=8YFLogxK
U2 - 10.1088/2053-1591/3/1/016402
DO - 10.1088/2053-1591/3/1/016402
M3 - Artículo
SN - 2053-1591
VL - 3
JO - Materials Research Express
JF - Materials Research Express
IS - 1
M1 - 016402
ER -