Dr Marian Florescu

Senior Lecturer

Email:
Phone: Work: 01483 68 6813
Room no: 26 ATI 02

Further information

Biography

Marian Florescu joined the University of Surrey in 2011. He graduated from the University of Bucharest with a BSc in Physics and then obtained his PhD in Theoretical Quantum Optics at the University of Toronto in 2003.  Prior to joining the Physics Department at Surrey he was a Research Scholar and Lecturer at Princeton University and a National Research Council Research Associate at NASA Jet Propulsion Laboratory. His current activities are focused on the physics and applications of non-crystallographic photonic band gap materials, thermal radiation control in photonic materials and quantum optics in structured photonic reservoirs.

Research Interests

MICRO- AND NANO-PHOTONICS

  • Fundamentals and applications of non-crystallographic photonic structures
  • Thermal radiation in nano-structured photonic materials; thermal management and thermophotovoltaic energy conversion
  • Quantum nonlinear optics and all-optical information processing in micro-structured photonic materials
  • Physics of structural colours in biophotonic nanostructures

NANO-ELECTRONICS AND SPINTRONICS

  • Temperature insensitive semiconductor materials: electronic structure and loss mechanisms in dilute bismide and nitride alloys
  • Hyperuniform disordered 2D and 3D electronic systems: amorphous graphene and silicon models
  • Flux quantization in disordered superconducting networks

LINEAR OPTICAL QUANTUM COMPUTING IN PHOTONIC NANOSTRUCTURES

  • Single-photon sources and detectors
  • Cavity-mediated entanglement of photonic and electronic excitations

Please see my homepage for further details of my research.


 

Publications

Highlights

  • Man W, Florescu M, Williamson EP, He Y, Hashemizad SR, Leung BY, Liner DR, Torquato S, Chaikin P, Steinhardt PJ. (2013) 'Isotropic band gaps and freeform waveguides observed in hyperuniform disordered photonic solids'. Proceedings of the National Academy of Sciences of USA, 120 (40), pp. 15886-15891.
  • Florescu M, Steinhardt PJ, Torquato S. (2013) 'Optical cavities and waveguides in hyperuniform disordered photonic solids'. Physical Review B - Condensed Matter and Materials Physics, 87 (16)

    Abstract

    Using finite-difference time domain and band structure computer simulations, we show that it is possible to construct optical cavities and waveguide architectures in hyperuniform disordered photonic solids that are unattainable in photonic crystals. The cavity modes can be classified according to the symmetry (monopole, dipole, quadrupole, etc.) of the confined electromagnetic wave pattern. Owing to the isotropy of the band-gap characteristics of hyperuniform disordered solids, high-quality waveguides with free-form geometries (e.g., arbitrary bending angles) can be constructed that are unprecedented in periodic or quasiperiodic solids. These capabilities have implications for many photonic applications. © 2013 American Physical Society.

  • Schuler CJ, Wolff C, Busch K, Florescu M. (2009) 'Thermal emission from finite photonic crystals'. AMER INST PHYSICS APPLIED PHYSICS LETTERS, 95 (24) Article number ARTN 241103
  • Florescu M, Torquato S, Steinhardt PJ. (2009) 'Designer disordered materials with large, complete photonic band gaps.'. Proc Natl Acad Sci U S A, United States: 106 (49), pp. 20658-20663.
  • Florescu M, Torquato S, Steinhardt PJ. (2009) 'Complete band gaps in two-dimensional photonic quasicrystals'. AMER PHYSICAL SOC PHYSICAL REVIEW B, 80 (15) Article number ARTN 155112
  • Florescu M, Lee H, Puscasu I, Pralle M, Florescu L, Ting DZ, Dowling JP. (2007) 'Improving solar cell efficiency using photonic band-gap materials'. ELSEVIER SCIENCE BV SOLAR ENERGY MATERIALS AND SOLAR CELLS, 91 (17), pp. 1599-1610.
  • Florescu M, Busch K, Dowling JP. (2007) 'Thermal radiation in photonic crystals'. AMERICAN PHYSICAL SOC PHYSICAL REVIEW B, 75 (20) Article number ARTN 201101
  • Florescu M, Hawrylak P. (2006) 'Spin relaxation in lateral quantum dots: Effects of spin-orbit interaction'. AMER PHYSICAL SOC PHYSICAL REVIEW B, 73 (4) Article number ARTN 045304
  • Florescu M, John S. (2004) 'Resonance fluorescence in photonic band gap waveguide architectures: Engineering the vacuum for all-optical switching'. Physical Review A - Atomic, Molecular, and Optical Physics, 69 (5 B), pp. 053810-1.
  • Florescu M, Scheel S, Haeffner H, Lee H, Strekalov DV, Knight PL, Dowling JP. (2002) 'Single photons on demand from 3D photonic band-gap structures'. Europhysics Letterrs 69, 945 (2005),
  • John S, Florescu M. (2001) 'Photonic bandgap materials: towards an all-optical micro-transistor'. IOP PUBLISHING LTD JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS, 3 (6), pp. S103-S120.
  • Florescu M, John S. (2001) 'Single-atom switching in photonic crystals'. American Physical Society Physical Review A. Atomic, Molecular, and Optical Physics, 64 (3), pp. 033801/1-033801/21.

Journal articles

  • Man W, Florescu M, Williamson EP, He Y, Hashemizad SR, Leung BY, Liner DR, Torquato S, Chaikin P, Steinhardt PJ. (2013) 'Isotropic band gaps and freeform waveguides observed in hyperuniform disordered photonic solids'. Proceedings of the National Academy of Sciences of USA, 120 (40), pp. 15886-15891.
  • Man W, Florescu M, Matsuyama M, Yadak P, Nahal G, Hamshezad S, Williamson E, Steinhardt P, Torquato S, Chaikin P. (2013) 'Photonic band gap in isotropic hyperuniform disordered solids with low dielectric contrast'. Optics Express, 21 (17), pp. 19972-19981.
  • Florescu M, Steinhardt PJ, Torquato S. (2013) 'Erratum: Optical cavities and waveguides in hyperuniform disordered photonic solids (Physical Review B (2013) 87 (165116) DOI:10.1103/PhysRevB.87.165116)'. Physical Review B - Condensed Matter and Materials Physics, 87 (15)
  • Florescu M, Steinhardt PJ, Torquato S. (2013) 'Optical cavities and waveguides in hyperuniform disordered photonic solids'. Physical Review B - Condensed Matter and Materials Physics, 87 (16)

    Abstract

    Using finite-difference time domain and band structure computer simulations, we show that it is possible to construct optical cavities and waveguide architectures in hyperuniform disordered photonic solids that are unattainable in photonic crystals. The cavity modes can be classified according to the symmetry (monopole, dipole, quadrupole, etc.) of the confined electromagnetic wave pattern. Owing to the isotropy of the band-gap characteristics of hyperuniform disordered solids, high-quality waveguides with free-form geometries (e.g., arbitrary bending angles) can be constructed that are unprecedented in periodic or quasiperiodic solids. These capabilities have implications for many photonic applications. © 2013 American Physical Society.

  • Maspero R, Sweeney SJ, Florescu M. (2013) 'Modelling the Auger Recombination rates of GaAsBi alloys'. 13th International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD 2013, , pp. 81-82.
  • Florescu M, Torquato S, Steinhardt PJ. (2010) 'Effects of random link removal on the photonic band gaps of honeycomb networks'. AMER INST PHYSICS APPLIED PHYSICS LETTERS, 97 (20) Article number ARTN 201103
  • Man W, Matsuyama K, Yadak P, Florescu M, Steinhardt P, Torquato S, Chaikin P. (2010) 'Experimental observation of photonic bandgaps in hyperuniform disordered material'. Optics InfoBase Conference Papers,
  • Schuler CJ, Wolff C, Busch K, Florescu M. (2009) 'Thermal emission from finite photonic crystals'. AMER INST PHYSICS APPLIED PHYSICS LETTERS, 95 (24) Article number ARTN 241103
  • Florescu M, Torquato S, Steinhardt PJ. (2009) 'Designer disordered materials with large, complete photonic band gaps.'. Proc Natl Acad Sci U S A, United States: 106 (49), pp. 20658-20663.
  • Florescu M, Torquato S, Steinhardt PJ. (2009) 'Complete band gaps in two-dimensional photonic quasicrystals'. AMER PHYSICAL SOC PHYSICAL REVIEW B, 80 (15) Article number ARTN 155112
  • Florescu M, Lee H, Puscasu I, Pralle M, Florescu L, Ting DZ, Dowling JP. (2007) 'Improving solar cell efficiency using photonic band-gap materials'. ELSEVIER SCIENCE BV SOLAR ENERGY MATERIALS AND SOLAR CELLS, 91 (17), pp. 1599-1610.
  • Florescu M, Busch K, Dowling JP. (2007) 'Thermal radiation in photonic crystals'. AMERICAN PHYSICAL SOC PHYSICAL REVIEW B, 75 (20) Article number ARTN 201101
  • Scheel S, Florescu M, Haffner H, Lee H, Strekalov DV, Knight PL, Dowling JP. (2007) 'Single photons on demand from tunable 3D photonic band-gap structures'. TAYLOR & FRANCIS LTD JOURNAL OF MODERN OPTICS, 54 (2-3), pp. 409-416.
  • Scheel S, Florescu M, Häffner H, Lee H, Strekalov DV, Knight PL, Dowling JP. (2007) 'Single photons on demand from tunable 3D photonic band-gap structures'. Journal of Modern Optics, 54 (3-4), pp. 409-416.
  • Florescu M, Hawrylak P. (2006) 'Spin relaxation in lateral quantum dots: Effects of spin-orbit interaction'. AMER PHYSICAL SOC PHYSICAL REVIEW B, 73 (4) Article number ARTN 045304
  • Florescu M, Scheel S, Knight PL, Lee H, Dowling JP. (2006) 'Nonlinear tuning of 3D photonic band-gap structures for single-photon on demand sources'. Physica E: Low-Dimensional Systems and Nanostructures, 32 (1-2 SPEC. ISS.), pp. 484-487.
  • Florescu M, Lee H, Stimpson AJ, Dowling J. (2005) 'Thermal emission and absorption of radiation in finite inverted-opal photonic crystals'. AMERICAN PHYSICAL SOC PHYSICAL REVIEW A, 72 (3) Article number ARTN 033821
  • Spedalieri FM, Lee H, Florescu M, Kapale KT, Yurtsever U, Dowling JP. (2004) 'Exploiting the quantum Zeno effect to beat photon loss in linear optical quantum information processors'. Optics Communications,
  • Florescu M, John S. (2004) 'Resonance fluorescence in photonic band gap waveguide architectures: Engineering the vacuum for all-optical switching'. Physical Review A - Atomic, Molecular, and Optical Physics, 69 (5 B), pp. 053810-1.
  • Florescu M, Scheel S, Haeffner H, Lee H, Strekalov DV, Knight PL, Dowling JP. (2002) 'Single photons on demand from 3D photonic band-gap structures'. Europhysics Letterrs 69, 945 (2005),
  • John S, Florescu M. (2001) 'Photonic bandgap materials: towards an all-optical micro-transistor'. IOP PUBLISHING LTD JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS, 3 (6), pp. S103-S120.
  • Florescu M, John S. (2001) 'Single-atom switching in photonic crystals'. American Physical Society Physical Review A. Atomic, Molecular, and Optical Physics, 64 (3), pp. 033801/1-033801/21.

Conference papers

  • Geev N, Man W, Florescu M, Steinhardt P, Torquato S, Chaikin P, Mullen RA. 'New designer dielectric metamaterial with isotropic photonic band gap'. Seattle, USA: Photonics Conference (IPC), 2013 IEEE (480)
  • Man W, He Y, Leung R, Tsitrin S, Florescu M, Steinhardt PJ, Torquato S, Chaikin P. (2012) 'Freeform wave-guiding and tunable frequency splitting in isotropic disordered photonic band gap materials'. Frontiers in Optics
  • Man W, Florescu M, Hashemizad S, He Y, Leung R, Williamson E, Chaikin P. (2012) 'Experimental demonstration of guiding, bending, and filtering of electromagnetic wave in disordered photonic band gap materials'. Optical Society of America Conference on Lasers and Electro-Optics 2012, OSA Technical Digest, San Jose, California United States: Quantum Electronics and Laser Science Conference
  • Florescu M, Torquato S, Steinhardt P. (2012) 'Photonic Band Gaps and Unusual Photon Transport in Hyperuniform Disordered Structures'. Optical Society of America Frontiers in Optics 2012/Laser Science XXVIII, OSA Technical Digest (online), Rochester, New York United States: Frontiers in Optics

    Abstract

    We demonstrate that hyperuniform disordered structures support electromagnetic states with very different transport properties, ranging from Bloch-like modes to diffusive states with characteristic time scales almost two-orders of magnitude larger.

  • Tsitrin S, He Y, Hewatt S, Leung B, Man W, Florescu M, Steinhardt PJ, Torquato S, Chaikin P. (2012) 'Cavity Modes Study in Hyperuniform Disordered Photonic Bandgap Materials'. Optical Society of America Frontiers in Optics 2012/Laser Science XXVIII, OSA Technical Digest (online), Rochester, New York United States: Frontiers in Optics

    Abstract

    We introduce novel architecture for cavity design in an isotropic disordered photonic band gap material. We demonstrate that point-like defects can support localized modes with different symmetries and multiple resonant frequencies, useful for various applications.

  • Man WN, Florescu M, Matsuyama K, Yadak P, Torquato S, Steinhardt P, Chaikin P. (2010) 'Experimental observation of photonic bandgaps in hyperuniform disordered material'. IEEE 2010 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) AND QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE (QELS), San Jose, CA: Conference on Lasers and Electro-Optics (CLEO)/Quantum Electronics and Laser Science Conference (QELS)
  • Schuler CJ, Wolff C, Busch K, Florescu M. (2010) 'Thermal emission from finite photonic crystals'. SPIE-INT SOC OPTICAL ENGINEERING ACTIVE PHOTONIC MATERIALS III, San Diego, CA: Conference on Active Photonic Materials III 7756
  • Florescu M, Busch K. (2009) 'Properties of thermal radiation in photonic crystals'. IOP PUBLISHING LTD JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS, Bad Honnef, GERMANY: 1st International Workshop on Theoretical and Computational Nano-Photonics 11 (11)
  • Florescu M, Torquato S, Steinhardt PJ. (2009) 'New classes of non-crystalline photonic band gap materials'. Proccedings of The European Conference on Lasers and Electro-Optics and the XIth European Quantum Electronics Conference, Munich, Germany: CLEO/Europe - EQEC 2009
  • Florescu M, Scheel S, Lee H, Knight PL, Dowling JP. (2006) 'Nonlinear tuning of 3D photonic band-gap structures for single-photon on demand sources'. ELSEVIER SCIENCE BV PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, Albuquerque, NM: 12th International Conference on Modulated Semiconductor Structures (MSS12) 32 (1-2), pp. 484-487.
  • Florescu M, Scheel S, Lee H, Knight PL, Bowling JP, Marciniak M. (2006) 'Three-dimensional photonic band-gap structures for single-photon on demand sources'. IEEE ICTON 2006: 8th International Conference on Transparent Optical Networks, Vol 2, Proceedings, Nottingham, ENGLAND: 8th International Conference on Transparent Optical Networks, pp. 40-43.
  • Florescu M, Dickman S, Ciorga M, Sachrajda A, Hawrylak P. (2004) 'Spin-orbit interaction and spin relaxation in a lateral quantum dot'. ELSEVIER SCIENCE BV PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, Nara, JAPAN: 15th International Conference on Electronic Properties of Two-Dimensional Systems (EP2DS-15) 22 (1-3), pp. 414-417.
  • Florescu M, John S. (2002) 'All-optical transistor action in photonic band gap materials'. SPIE-INT SOC OPTICAL ENGINEERING APPLICATIONS OF PHOTONIC TECHNOLOGY 5, QUEBEC CITY, CANADA: 5th International Conference on Applications of Photonic Technology (ICAPT 2002) 4833, pp. 513-524.

Patents

  • Florescu M, Steinhardt PJ, Torquato S. (2012) NON-CRYSTALLINE MATERIALS HAVING COMPLETE PHOTONIC, ELECTRONIC, OR PHONONIC BAND GAPS.
  • Florescu M, Dowling J, Lee H. (2009) Photonic crystal architectures for frequency- and angle-selective thermal emitters. Article number US/20090217977 A1

PATENTS AND INVENTION DISCLOSURES

  • Marian Florescu, Salvatore Torquato and Paul Steinhardt, "Non-crystalline Materials having Complete Photonic, Electronic, or Phononic Band Gaps", US and international patent application No. WO2011005530, 2010.
  • Marian Florescu, Salvatore Torquato and Paul Steinhardt, "Method of Designing Photonic Heterostructures with Optimal Bandgap Properties for Arbitrary Symmetry and Arbitrary Long- Range Translational Order", Invention Disclosure, Office of Technology Licensing & Intellectual Property, Princeton University, 2008.
  • Marian Florescu, Salvatore Torquato and Paul Steinhardt, Disordered Photonic Heterostructures and Uses Thereof, Invention Disclosure, Office of Technology Licensing & Intellectual Property, Princeton University, 2008.
  • Marian Florescu, Jonathan P. Dowling and Hwang Lee, "Angular-Selective Absorber Based on a 3D Photonic Crystal: Application to High-Efficiency Solar Energy Conversion, US Provisional Patent Application No. 61030610, 2008.
  • Nick Mardesich, Deborah Jackson and Marian Florescu, Thermal Photonic Photovoltaic Energy System, New Technology Report, NASA Jet Propulsion Laboratory, California Institute of Technology, 2006.
  • Deborah Jackson and Marian Florescu, Integrated Prism Coupler for Light Trap Detector, New Technology Report, NASA Jet Propulsion Laboratory, California Institute of Technology, 2005.

Teaching

  • Level 3/M Nanophotonics
  • Level 2 Light Lab
  • Level 2 Electromagnetic Waves
  • Level 1 Small Group Tutorials

Departmental Duties

  • Level 1 Coordinator
  • Member of the Board of Studies Sub-Committee
  • Member of Staff Student Liaison Committee
  • ATI Seminar Organiser

Page Owner: mf0014
Page Created: Tuesday 2 August 2011 09:16:56 by ens2cs
Last Modified: Wednesday 9 April 2014 11:57:17 by pg0016
Expiry Date: Friday 2 November 2012 09:11:22
Assembly date: Wed Apr 16 22:25:12 BST 2014
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