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@article{Grinblat:2019:10.1126/sciadv.aaw3262,
author = {Grinblat, G and Nielsen, M and Dichtl, P and Li, Y and Oulton, R and Maier, S},
doi = {10.1126/sciadv.aaw3262},
journal = {Science Advances},
title = {Ultrafast sub-30 FS all-optical switching based on gallium phosphide},
url = {http://dx.doi.org/10.1126/sciadv.aaw3262},
volume = {5},
year = {2019}
}

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TY  - JOUR
AB  - Gallium  Phosphide  (GaP)  is  one  of  the  few  available  materials  with  strong  optical nonlinearity and negligible losses in the visible (  >450    )and near-infrared regime. In this  work,  we  demonstrate  that  a  GaP  film  can  generate  sub-30  fs  (full  width  at  half maximum) transmission modulation of up to 70% in the 600-1000 nm wavelength range. Nonlinear simulations using parameters measured by the Z-scan approach indicate that the transmission modulation arises from the optical Kerr effect and two-photon absorption. Due to  the  absence  of  linear  absorption,  no  slower  free-carrier  contribution  is detected.  These findings place GaP as a promising ultrafast material for all-optical switching at modulation speeds of up to 20 THz.
AU  - Grinblat,G
AU  - Nielsen,M
AU  - Dichtl,P
AU  - Li,Y
AU  - Oulton,R
AU  - Maier,S
DO  - 10.1126/sciadv.aaw3262
PY  - 2019///
SN  - 2375-2548
TI  - Ultrafast sub-30 FS all-optical switching based on gallium phosphide
T2  - Science Advances
UR  - http://dx.doi.org/10.1126/sciadv.aaw3262
UR  - http://hdl.handle.net/10044/1/70720
VL  - 5
ER  -

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