Imperial College London

ProfessorNeilAlford

Central FacultyOffice of the Provost

Associate Provost (Academic Planning)
 
 
 
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Contact

 

+44 (0)20 7594 6724n.alford

 
 
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Assistant

 

Miss Catherine Graham +44 (0)20 7594 3330

 
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Location

 

2..05 (in RSM) or 3.09 (in the Faculty Building)Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Wells:2017:10.1002/adom.201700622,
author = {Wells, MP and Zou, B and Doiron, BG and Kilmurray, R and Mihai, AP and Oulton, RF and Gubeljak, P and Ormandy, K and Mallia, G and Harrison, N and Cohen, LF and Maier, S and Petrov, PK},
doi = {10.1002/adom.201700622},
journal = {Advanced Optical Materials},
title = {Tunable, Low Optical Loss Strontium Molybdate Thin Films for Plasmonic Applications},
url = {http://dx.doi.org/10.1002/adom.201700622},
volume = {5},
year = {2017}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - Strontium molybdate (SrMoO3) thin films are grown epitaxially on strontium titanate (SrTiO3), magnesium oxide (MgO), and lanthanum aluminate (LaAlO3) substrates by pulsed laser deposition and possess electrical resistivity as low as 100 µΩ cm at room temperature. SrMoO3 is shown to have optical losses, characterized by the product of the Drude broadening, ΓD, and the square of the plasma frequency, ωpu2, significantly lower than TiN, though generally higher than Au. Also, it is demonstrated that there is a zero-crossover wavelength of the real part of the dielectric permittivity, which is between 600 and 950 nm (2.05 and 1.31 eV), as measured by spectroscopic ellipsometry. Moreover, the epsilon near zero (ENZ) wavelength can be controlled by engineering the residual strain in the films, which arises from a strain dependence of the charge carrier concentration, as confirmed by density of states calculations. The relatively broad tunability of ENZ behavior observed in SrMoO3 demonstrates its potential suitability for transformation optics along with plasmonic applications in the visible to near infrared spectral range.
AU - Wells,MP
AU - Zou,B
AU - Doiron,BG
AU - Kilmurray,R
AU - Mihai,AP
AU - Oulton,RF
AU - Gubeljak,P
AU - Ormandy,K
AU - Mallia,G
AU - Harrison,N
AU - Cohen,LF
AU - Maier,S
AU - Petrov,PK
DO - 10.1002/adom.201700622
PY - 2017///
SN - 2195-1071
TI - Tunable, Low Optical Loss Strontium Molybdate Thin Films for Plasmonic Applications
T2 - Advanced Optical Materials
UR - http://dx.doi.org/10.1002/adom.201700622
UR - http://hdl.handle.net/10044/1/50383
VL - 5
ER -