Imperial College London
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Dr Alex S. Clark

Faculty of Natural Sciences, Department of Physics

Academic Visitor
 
 
 
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Contact

 

alex.clark Website

 
 
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Location

 

Blackett 211Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Jizan:2015:10.1038/srep12557,
author = {Jizan, I and Helt, LG and Xiong, C and Collins, MJ and Choi, D-Y and Chae, CJ and Liscidini, M and Steel, MJ and Eggleton, BJ and Clark, AS},
doi = {10.1038/srep12557},
journal = {SCIENTIFIC REPORTS},
title = {Bi-photon spectral correlation measurements from a silicon nanowire in the quantum and classical regimes},
url = {http://dx.doi.org/10.1038/srep12557},
volume = {5},
year = {2015}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The growing requirement for photon pairs with specific spectral correlations in quantum optics experiments has created a demand for fast, high resolution and accurate source characterisation. A promising tool for such characterisation uses classical stimulated processes, in which an additional seed laser stimulates photon generation yielding much higher count rates, as recently demonstrated for a χ(2) integrated source in A. Eckstein et al. Laser Photon. Rev. 8, L76 (2014). In this work we extend these results to χ(3) integrated sources, directly measuring for the first time the relation between spectral correlation measurements via stimulated and spontaneous four wave mixing in an integrated optical waveguide, a silicon nanowire. We directly confirm the speed-up due to higher count rates and demonstrate that this allows additional resolution to be gained when compared to traditional coincidence measurements without any increase in measurement time. As the pump pulse duration can influence the degree of spectral correlation, all of our measurements are taken for two different pump pulse widths. This allows us to confirm that the classical stimulated process correctly captures the degree of spectral correlation regardless of pump pulse duration, and cements its place as an essential characterisation method for the development of future quantum integrated devices.
AU  - Jizan,I
AU  - Helt,LG
AU  - Xiong,C
AU  - Collins,MJ
AU  - Choi,D-Y
AU  - Chae,CJ
AU  - Liscidini,M
AU  - Steel,MJ
AU  - Eggleton,BJ
AU  - Clark,AS
DO  - 10.1038/srep12557
PY  - 2015///
SN  - 2045-2322
TI  - Bi-photon spectral correlation measurements from a silicon nanowire in the quantum and classical regimes
T2  - SCIENTIFIC REPORTS
UR  - http://dx.doi.org/10.1038/srep12557
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000358579600001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/60867
VL  - 5
ER  -
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