(c) Dr Paul Kinsler. [Acknowledgements & Feedback]

Dr. Paul Kinsler

Research Physicist
BSc, MSc(1st), PhD, CPhys, MinstP.
Metamaterials, nonlinear optics, semiconductor microstructures, quantum optics.
Member of the Institute of Physics.

Photonics,
Department of Physics,
Imperial College London,
Prince Consort Road, London SW7 2BW, United Kingdom.

INDEX: Optical Pulses; Semiconductor Microstructures; Quantum Optics; Publications (direct); Hypertext Physics project; Biography/ Techniques/ Tools/ Merchandise/ Etc; Contact Information;

RELATED SITES: me @ Imperial College (master site); me @ www.kinsler.org/physics (mirror); me @ Researcher ID; me @ academia.edu; IRC #physics channel page.

Good web sites support user feedback and discussion forums. So if you have any questions, feel free to email me at dr.paul.kinsler@physics.org. As for discussion forums, I'll just point out my favourite ones: firstly, the sci.physics.* internet newsgroups (which naturally have a FAQ file). I read the newsgroups sci.physics. research, electromag, cond-matter, and sci.optics. Secondly, there is the real-time chat medium of IRC (channel #physics).

As a rule I check the RSS feeds from various APS, AIP, IoP, and OSA journals, also the arXiv. If something catches my eye I might tag it (rss), or even blog about it at citeulike.

Metamaterials and Electromagnetism

Causality editors and blowing bubbles in spacetime (short intro)

The Maxwell's Fishpond: tabletop transformation aquatics in action! (short intro with video)(blog)

A straightforward treatment of causality in time and spacetime, including the Kramers Kronig relations

The space-time cloak, aka the event cloak (chicken analogy)(blog)

Derived and compared four Poynting theorems (one of which is new)

Enhanced my EM pulse propagation methods by applying only minimal approximations

Proposed a new definition for the wavevector that behaves better under loss

Causality-based constraints on negative refraction and perfect imaging.

Under (rather slow) construction.

Optical Pulses

My current area of interest is the propagation of few-cycle optical pulses. Such ultrashort pulses have applications in areas ranging from precision spectroscopy (THz to VUV), optical atomic clocks, and fundamental tests of physical theories.

Developed theory of propagation of directed EM fields, allowing near-exact pulse envelope propagation;

Developed the most general form of standard envelope theory based on the second order wave equation, for propagation of (few-cycle) optical pulses;

Theory for ultra-wideband nonlinear optical processes (e.g. parametric amplifiers, Raman).

Topics

Phase in Optical Pulses (London);
1. Phase Retention in SPM Super-broadened Pulses; CLEO 2006 abstract;
2. Phase sensitivity of perturbative nonlinear interaction;
OPCPA (London);
1. Transverse Spatial Structures and OPCPA; CLEO 2006 abstract; C. Tsangaris, P. Kinsler, G.H.C. New.
Carrier Shocking (London);
1. "Optical Carrier Wave Shocking: A parameter space analysis of the interplay between instantaneous and delayed material response",
  P. Kinsler, J.C.A. Tyrrell, S.B. Radnor, G.H.C. New, talk, ECLEO, Munich, June 2005;
2. "Optical Carrier Wave Shocking: A parameter space analysis of the interplay between instantaneous and delayed material response",
  P. Kinsler, J.C.A. Tyrrell, S.B. Radnor, G.H.C. New, poster, CLEO, Baltimore, May 2005.
Directional pulse propagation (London);
1. CLEO 2005 poster;
2. Theory of directional pulse propagation (paper);
Few-cycle pulses (London);
1. Phase and few-cycle pulses in nonlinear optics. CLEO 2004 poster
2. Near-degenerate few-cycle optical pulses ECLEO 2003 postdeadline talk: abstract, slides;
3. NLS Solitons and the Few-Cycle Regime. BECQI 2003 talk: abstract and slides;
4. Spectral overlap and off-resonant polarization terms in parametric interactions. CLEO 2003 abstract;
5. Few-Cycle Pulses in an Optical Parametric Oscillator. Photon'02 talk: abstract and slides (634k);
6. Few-Cycle Pulses in an Optical Parametric Oscillator. IQEC talk: abstract, summary, and slides (620k);
7. Anomalous Tuning Behaviour of a Synchronously Pumped OPO. IQEC poster (1600k total);
8. Theory of Few-Cycle Pulses in an Optical Parametric Oscillator. CLEO abstract, summary, and poster;
Ultra broadband Raman generation (London);

Semiconductor Microstructures

Quantum structures in semiconductor materials (ie. semiconductor microstructures). are typically between a nanometre and a micrometre in size. They are made by processes similar to those used to make integrated circuits (computer chips). The structures can control where and how electrons and photons can move and affect each other on a quantum level. In particular I investigated the physics behind the future design of solid state terahertz emitters.

Numerical verification of models of ionised impurity scattering in SiGe;

Demonstration of role of non-thermal carrier distributions in optically pumped quantum wells and hot-hole lasers, including the role of Auger scattering events and layer phonon modes;

Motional narrowing in semiconductor microcavities.

Topics

Si(x)Ge(1-x): Bandstructure and the Hall effect. (Delft);
Optimised ionised impurity scattering algorithm (Delft);
Inter-valence-band Hole Lasers (Delft);
1. Towards quantum well hot hole lasers. ICPS-25 talk, (postscript & gif 292K total);
2. Hot-Hole Lasers in III-V Materials. INTERACT Chateau de Bonas talk, (236K total);
Terahertz (far infrared) Emitters in AlGaAs (Leeds);
1. Terahertz lasers using inter-subband transitions in quantum wells: predictions from Monte Carlo simulation. HCIS-11 1999 poster, (232K total);
2. Non-equilibrium electrons in asymmetric quantum wells: a Monte Carlo approach: CMMP 1998 poster, (64K total);
3. Terahertz lasers using inter-subband transitions in quantum wells: ACOLS 1998 Seminar slides, (184K total);
4. Inter-subband terahertz lasers using four-level asymmetric quantum wells: ICSMM-11 1998 Seminar slides, (152K total);
5. Interface and Confined phonons in stepped quantum wells: ICSMM-11/Phonons'98 1998 poster, (148K total);
6. Interface and Confined phonons: informal hyperlinked notes;
7. Electron-electron scattering in asymmetric quantum well inter-subband lasers (3 subband): CMMP 1997 poster, (200K total);
Spectral and dynamics of exciton-polaritons (Sheffield);
1. Motional narrowing of Polaritons in Semiconductor Quantum Microcavities (IQEC 1996 slides, 134K total);
2. Relaxation bottleneck of polaritons in semiconductor quantum microcavities(non-accepted IQEC 1996 abstract);
3. Motional narrowing in semiconductor quantum microcavities (CMMP 1995 poster, PDF);
4. Linewidth reduction of Polaritons (NATO ASI Cargese 1995 slides, 14K+PDF's);
Electron--Phonon Scattering(Sheffield, Leeds).

Quantum Optics

Quantum optics is the study of the interaction of light (the EM field) with matter. It covers quantised light interacting with bulk matter, semiclassical light interacting with quantised atoms, and quantised light interacting with quantised matter. This is the field which has given us lasers, optical solitons, squeezing, and spawned quantum cryptography, quantum computers, and atom optics.

Found analytic solution for the above and below threshold parametric oscillator, and subsequent demonstration of order of magnitude differences between quantum and semiclassical tunnelling rates;

Found the first ever solution to a non-equilibrium quantum system at threshold, with subsequent implications for the testing of quantum mechanics.

Topics

Quantum and hidden variable theories (Queensland);
1. Testing quantum mechanics using third order correlations: NQEC 1995 poster (reformatted PDF, 84K), (gifs, 216K total);
2. Why the quantum uncertainty isn't just random: 1994 seminar, (268K total);
Squeezing and critical behaviour (Queensland);
1. Is parametric phase squeezing useful? QELS 1993 poster, (233Kb total);
2. The parametric oscillator at threshold: QO VI 1994 poster, (288Kb total);
3. Critical fluctuations in quantum parametric oscillation: 1995 seminar, (340Kb total);
Tunneling and switching in optical bistability (Auckland).
Other topics (Queensland, Oregon).

Publications

Biography, and Miscellaneous

A brief career biography (Auckland, Queensland, Sheffield, Leeds, Delft, London)
Sideline: the IRC Channel #physics
Techniques.
Tools.
Merchandise.

Contact information

Normal mail: Department of Physics (Photonics), Imperial College London, Prince Consort Road, London SW7 2BW, United Kingdom.
Email: dr.paul.kinsler@physics.org (filtered for spam)
Public Keys:
Telephone: +44-20-75947734
Fax: +44-20-75947714
IRC : haberman, on the channel #physics in IRCnet, EFnet, and UnderNet IRC networks (rarely)
Office:
WWW: http://www.qols.ph.ic.ac.uk/~kinsle/
WWW: http://www.kinsler.org/physics/

Date=1118 1029 0924 20 20120614 20110610 16 15 20101109 3006 2906 0402 20090320 20080222 20070510 20061124 22 13 20051208 20040414 20030630 1125 0829 0710 20 0619 0424 0418 0321 20020123 18 1117 20010618 1003 20000223 1208 1201 1109 19990629 19980722 Author=P.Kinsler Created=1995

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