Imperial College London

DrRobertNyman

Faculty of Natural SciencesDepartment of Physics

Research Fellow
 
 
 
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Contact

 

+44 (0)20 7594 7909r.nyman Website

 
 
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Location

 

704Huxley BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Nyman:2015:10.1103/PhysRevA.91.033813,
author = {Nyman, RA and Marelic, J},
doi = {10.1103/PhysRevA.91.033813},
journal = {Physical Review A},
title = {Experimental evidence for inhomogeneous pumping and energy-dependent effects in photon Bose-Einstein condensation},
url = {http://dx.doi.org/10.1103/PhysRevA.91.033813},
volume = {91},
year = {2015}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - Light thermalized at room temperature in an optically pumped, dye-filled microcavity resembles a model system of noninteracting Bose-Einstein condensation in the presence of dissipation. We have experimentally investigated some of the steady-state properties of this unusual state of light and found features which do not match the available theoretical descriptions. We have seen that the critical pump power for condensation depends on the pump beam geometry, being lower for smaller pump beams. Far below threshold, both intracavity photon number and thermalized photon cloud size depend on pump beam size, with optimal coupling when the pump beam matches the thermalized cloud size. We also note that the critical pump power for condensation depends on the cavity cutoff wavelength and longitudinal mode number, which suggests that energy-dependent thermalization and loss mechanisms are important.
AU - Nyman,RA
AU - Marelic,J
DO - 10.1103/PhysRevA.91.033813
PY - 2015///
SN - 1094-1622
TI - Experimental evidence for inhomogeneous pumping and energy-dependent effects in photon Bose-Einstein condensation
T2 - Physical Review A
UR - http://dx.doi.org/10.1103/PhysRevA.91.033813
UR - http://hdl.handle.net/10044/1/19978
VL - 91
ER -