2013

Generation and interferometric analysis of high charge optical vortices
Yong Shen, Geoff T Campbell, Boris Hage, Hongxin Zou, Ben C Buchler and Ping Koy Lam
 Journal of  Optics 15 044005 (2013)

Memory-enhanced noiseless cross-phase modulation
M. Hosseini, S. Rebić, B. M. Sparkes, J. Twamley, B. C. Buchler and P.K. Lam
Nature Light Science and Applications 1 e40 (2012)

Generation of high-order optical vortices using directly machined spiral phase mirrors
G. Campbell, B. Hage, B. C. Buchler, and P. K. Lam
Applied Optics, Vol. 51, Issue 7, pp. 873-876 (2012)

2011

Backscatter tolerant squeezed light source for advanced gravitational-wave detectors
Sheon S. Y. Chua, Michael S. Stefszky, Conor M. Mow-Lowry, Ben C. Buchler, Sheila Dwyer, Daniel A. Shaddock, Ping Koy Lam, and David E. McClelland
Optics Letters, Vol. 36, Issue 23, pp. 4680-4682 (2011)

Photon-number discrimination without a photon counter and its application to reconstructing non-Gaussian states
H. M. Chrzanowski, J. Bernu, B. M. Sparkes, B. Hage, A. P. Lund, T. C. Ralph, P. K. Lam, and T. Symul
Phys. Rev. A 84, 050302(R) (2011) 

A scalable, self-analyzing digital locking system for use on quantum optics experiments
B. M. Sparkes, H. M. Chrzanowski, D. P. Parrain, B. C. Buchler, P. K. Lam, and T. Symul
Rev. Sci. Instrum. 82, 075113 (2011)

Unconditional room-temperature quantum memory
M. Hosseini, G. Campbell, B. M. Sparkes, P. K. Lam and B. C. Buchler
Nature Physics, 7, 794 (2011)

Real time demonstration of high bitrate quantum random number generation with coherent laser light
T. Symul, S. M. Assad, and P. K. Lam
Appl. Phys. Lett. 98, 231103 (2011)

High efficiency coherent optical memory with warm rubidium vapour
M. Hosseini, B. M. Sparkes, G. Campbell, P. K. Lam and B. C. Buchler
Nature Communications 2,174 (2011)

An investigation of doubly-resonant OPOs and non-linear crystals for squeezing
M. Stefszky, C. Mow-Lowry, K. McKenzie, S. Chua, B.C. Buchler, T. Symul, D. McClelland and P.K. Lam
J. Phys. B: At. Mol. Opt. Phys. 44 015502 (2011)

2010

ac Stark gradient echo memory in cold atoms
B.M. Sparkes, M. Hosseini, G. Hétet, P.K. Lam and B. C. Buchler
Phys. Rev. A 82, 043847 (2010)

Precision spectral manipulation of optical pulses using a coherent photon echo memory
B. C. Buchler, M. Hosseini, G. Hétet, B. M. Sparkes and P. K. Lam
Optics Letters vol. 35 pp 1091-1093 (2010)

2009

A coherent optical pulse sequencer for quantum applications,
Nature (2009) vol. 461(7261) pp. 241-245 
M. Hosseini, B. M. Sparkes, G. Hétet, J. Longdell, P. K. Lam and B. C. Buchler

Spatial-state Stokes-operator squeezing and entanglement for optical beams.
Phys. Rev. A (2009) vol. 79 (4) 043825
M. T. L Hsu, W. P Bowen, P. K Lam.

2008

Multimodal Properties and Dynamics of Gradient Echo Quantum Memory.
Phys. Rev. Lett. (2008) vol.101, 203601 
G Hétet, J. J Longdell, M. J Sellars, P. K Lam, B. C Buchler.

Photon echoes generated by reversing magnetic field gradients in a rubidium vapor.
Optics Letters (2008) vol. 33 (20) pp. 2323-2325
G Hétet, M Hosseini, B. M Sparkes, D Oblak, P. K Lam, B. C Buchler.

Single-atom detection with optical cavities.
Phys. Rev. A (2008) vol. 78 (1) 013640
R Poldy, B. C Buchler, J. D Close.

Delay of squeezing and entanglement using electromagnetically induced transparency in a vapour cell.
Opt Express (2008) vol. 16 (10) pp. 7369-7381
G Hètet, B. C Buchler, O Glöckl, M. T. L Hsu, A. M Akulshin, H. A Bachor, P. K Lam.

Characterization of electromagnetically-induced-transparency-based continuous-variable quantum memories.
Phys. Rev. A (2008) vol. 77 (1) 012323
G Hetet, A Peng, M. T Johnsson, J. J Hope, P. K Lam.

Electro-optic quantum memory for light using two-level atoms.
Phys. Rev. Lett. (2008) vol. 100 (2) 023601
G Hetet, J. J Longdell, A. L Alexander, P. K Lam, M. J Sellars.

Entangling the spatial properties of laser beams.
K. Wagner, Ji. Janousek, V. Delaubert, H. Zou, C. Harb, Ni. Treps, J. F. Morizur, P. K. Lam, H. A Bachor.
Science (2008) vol. 321 (5888) 541-543

Analytic treatment of controlled reversible inhomogeneous broadening quantum memories for light using two-level atoms.
J. J Longdell, G Hetet, P. K Lam, M. J Sellars.
Phys. Rev. A (2008) vol. 78 (3) 032337

Quantum cloning of continuous-variable entangled states.
C.Weedbrook, N. B Grosse, T. Symul, P.K. Lam, T. C. Ralph.
Phys. Rev. A (2008) vol. 77 (5) 052313

Observation of entanglement between two light beams spanning an octave in optical frequency.
N. B Grosse, S. Assad, M. Mehmet, R. Schnabel, T. Symul, P. K. Lam.
Phys. Rev. Lett. (2008) vol. 100 (24) 243601

2007

Experimental demonstration of post-selection-based continuous-variable quantum key distribution in the presence of Gaussian noise.
Phys. Rev. 76 A (R), 030303 (2007)
Thomas Symul, Daniel J Alton, Syed M Assad, Andrew M Lance, Christian Weedbrook, Timothy C Ralph, Ping Koy Lam.

Technical limitations to homodyne detection at audio frequencies.
Applied Optics, 46:3389–3395, (2007)
K. McKenzie, M. B. Gray, P. K. Lam, and D. E. McClelland.

Measuring photon antibunching from continuous variable sideband squeezing
Phys. Rev. Lett., 98, 153603, Apr 2007.
N. B. Grosse, T. Symul, M. Stobinska, T. C. Ralph, and P. K. Lam

Squeezed light for bandwidth-limited atom optics experiments at the rubidium D1 line. 
Journal of Physics B, 40, 221, (2007).
G. Hétet, O. Glöckl, K. A. Pilypas, C. C. Harb, B. C. Buchler, H.-A. Bachor and P. K. Lam

2006

Quantum study of information delay in electromagnetically induced transparency 
Physical Review Letters, 97, 183601, (2006).
M. T. L. Hsu, G. Hétet, O. Glöckl, J. J. Longdell, B. C. Buchler, H.-A. Bachor, and P. K. Lam.

Nonlinear phase matching locking via optical readout.
Opt Express 14, 11256 (2006)
Kirk McKenzie, Malcolm B Gray, Ping Koy Lam, David E McClelland.

Effect of atomic noise on optical squeezing via polarization self-rotation in a thermal vapour cell
Phys. Rev. A 73, 023806 (2006)
M. T. L. Hsu, G. Hétet, A. Peng, C. C. Harb, H.-A. Bachor, M. T. Johnsson, J. J. Hope, P. K. Lam, A. Dantan, J. Cviklinski, A. Bramati, and M. Pinard

Coherent-state quantum key distribution without random basis switching
Phys. Rev. A 73, 022316 (2006)
C. Weedbrook, A. M. Lance, W. P. Bowen, T. Symul, T. C. Ralph and P. K. Lam

Harmonic Entanglement with second-order nonlinearity
Phys. Rev. Lett. 96, 063601 (2006)
N. B. Grosse, W. P. Bowen, K. McKenzie, and P. K. Lam

Spatial quantum effects with continuous-wave laser beams
J. Mod. Opt. 53, 597 (2006)
H. –A. Bachor, V. Delaubert, C. C. Harb, M. T. L. Hsu, P. K. Lam, C. Fabre and N. Treps

A complete quantum cryptographic system using a continuous wave laser
SPIE 6038, 03-1 (2006)
V. Sharma, A. M. Lance, T. Symul, C. Weedbrook, T. C. Ralph, and P. K. Lam

Squeezed state generation for interferometric gravitational-wave detection
Class. Quantum Grav. 23, S245 (2006)
K. McKenzie, M. B. Gray, S. Goßler, P. K. Lam and D. E. McClelland

Quantum-state engineering with continuous-variable postselection
Phys. Rev. A 73, 041801(R) (2006)
A. M. Lance, H. Jeong, N. B. Grosse, T. Symul, T. C. Ralph, and P. K. Lam

Quantum measurements of spatial conjugate variables: displacement and tilt of a Gaussian beam
Opt. Lett. 31, 1537 (2006)
V. Delaubert, N. Treps, C. C. Harb, P. K. Lam, and H. –A, Bachor

Generation of squeezing in higher order Hermite-Gaussian modes with an optical parametric amplifier
J. Euro. Opt. Soc. 1, 06003 (2006)
M. Lassen, V. Delaubert, C. C. Harb, P. K. Lam, N. Treps, and H. –A. Bachor

Earlier Publications