Alexander Moroz Home Page
Welcome to my home page!

Alexander Moroz
Wavescattering.com

Personal history:
 graduated in 1986 in theoretical physics from the
Institute of Theoretical Physics,
Faculty of Mathematics and Physics, Charles University,
Prague, the Czech Republic, with the award from the Ministry of
Education of the Czech Republic
 Ph.D. in 1991, Institute of Physics, Czech
Academy of Sciences, the Czech Republic  sharing office in 19881991 with
Petr Horava
 September 1991  March 1992: SNF Fellow at the Institute for Theoretical
Physics,
ETH Zurich, Switzerland  sharing office with
Vadim Geshkenbein
 April 1992  December 1992: postdoc at the Institute for Theoretical Physics,
EPFL Lausanne, Switzerland  sharing office with
Alain Joye
 January 1993  September 1993: postdoc at
the Institute of Physics CAS,
Prague, the Czech Republic
 October 1993  September 1994: postdoc at IPN Orsay, France
 October 1994  August 1996: postdoc at the
Theoretical Physics
Research Group, University of Birmingham, UK  sharing office with
Kirill Ilinski
 September 1996  August 1999: postdoc at the Theory
Group of the FOM Institute,
AMOLF, Amsterdam, The Netherlands
 September 1999  March 2000: postdoc at the
I. Institute of Theoretical Physics,
Hamburg University, D20355 Hamburg, Germany
 April 2000May 2002: postdoc at the
Soft Condensed Matter Group, Debye Institute,
Utrecht University, P.O. Box 80000, 3508 TA Utrecht, The Netherlands
 sharing office with
Christina Maria Graf
 June 2002January 2003: Electromagnetics Division,
European Space Research and
Technology Centre (ESTEC) of the
European Space Agency (ESA), PO Box 299,
NL2200 AG Noordwijk, The Netherlands
Without having own group and working on my own
(since 2003 without any funding and working in my free time only),
I have recorded over 1600 citations since 1995 on my
publications
[see a recent snapshot of
my Scopus record and of Google Scholar from 20.03.2015], and
I have reached hindex of 22.
Follow me on:
I'm a member of OSA
Special skills:
You can communicate with me in the Czech, Dutch, English, French, German,
Polish, Russian, Slovak, and Ukrainian languages.
My freetime research interests
Various subjects of theoretical physics, including general scattering theory,
numerical solution of electromagnetic scattering problems,
negative refractive index metamaterials, luminescence and scattering properties
of small metal nanoparticles, affinity sensors,
subwavelength nanoguides, surface plasmons, optical imaging of biotissues,
quantum optics, lightmatter interactions, theory of optical tweezers, and
physics of photonic bandgap structures, or, photonic crystals.
My work before 2001 has been summarized in the contribution Towards
complete photonic band gap structures below infrared wavelengths to the Proceedings
of the NATO ASI Photonic Crystals and
Light Localization in the 21st Century
(Kluwer, Amsterdam, 2001) and in the contribution K7.5,
Photonic
Crystals at NearInfrared and Optical Wavelengths
[pdf], in the Proceedings of
the MRS Fall Meeting 2001  BB symposium.
A popular review on the use, properties, and
fabrication of photonic crystals has recently appeared in
PhysicsWeb.
See also Guiding Surface Waves
and
Tungsten Crystals Could Provide More Power for Electrical Devices.
You will find more about why a periodic array of metal rods may be the best
way to create narrow, highfrequency microwave signals
for everything from satellites to cell phones
in Lattice Sends a Crystal
Clear Signal. Some additional information, together with selected photonic
web links, is supplied below:
Full list of my scientific publications 
My top 10 most cited publications 
Popularization articles,
opinions, and
newspaper articles (in Czech)
My latest publications are:
 A. Moroz, On uniqueness of HeineStieltjes polynomials for
second order finitedifference equations,
submitted to J. Phys. A: Math. Theor.
arXiv:1506.00978 [mathph]
(The general second order finitedifference equation has two linearly independent
solutions, yet at most one of the two can be a polynomial solution.)
 A. Moroz, Haydock's recursive solution of selfadjoint problems.
Discrete spectrum,
Ann. Phys. (N.Y.) 351, 960974 (2014).
(The article has been supplemented with a
Supporting Information.
See also my slide presentation.)
 A. Moroz, Quantum models with spectrum generated by the flows of polynomial zeros,
J. Phys. A: Math. Theor. 47(49), 495204 (2014)
arXiv:1403.3773 [mathph],
 A. Moroz, A hidden analytic structure of the Rabi model,
Ann. Phys. (N.Y.) 340(1), 252266 (2014).
[arXiv:1305.2595 [quantph]]
 A. Moroz, On solvability and integrability of the Rabi model,
Ann. Phys. (N.Y.) 338, 319340 (2013).
[cited 5x as arXiv:1302.2565]
[arXiv:1302.2565 [quantph]]
 A. Moroz, On the spectrum of a class of quantum models,
Europhys. Lett. 100, 60010 (2012).
[arxiv:1209.3265 [quantph]]
Previous scientific highlights:
 The performance of individual metal nanoparticles (MNPs)
is crucially influenced by the localized surface plasmon resonance (LSPR)
homogeneous line width or, alternatively, the
LSPR dephasing time. So far, two main paths have been pursued in order to improve
over the performance of individual spherical metal nanoparticles MNPs: (1) various
coreshell MNP morphologies and (2) nonspherical MNP external shapes, such as rods,
cubes, and prisms.
Read here
about a third alternative.
 Together with Vassilis Yannopapas
we have shown in the article
J. Phys.: Condens. Matter. 17, 37173734 (2005)
[pdf] that a composite of inherently nonmagnetic homogeneous spheres
can provide a negative refractive index metamaterial.
Note that materials that exhibit magnetic response are:
 i) particularly rare at THz and
infrared frequencies and, if they exist,

ii) they usually
suffer from high losses.
The resulting negative refractive index structure is
a truly subwavelength structure with wavelengthtostructure ratio
as high as 14:1, which appears to be almost by 50% higher
than it has been achieved so far using split ring resonators and wires.
Our results were explained in the context of the extended
Maxwell  Garnett theory
(see accompanying F77 code EFFE2P) and reproduced by
the ab initio calculations
based on multiplescattering theory. The role of absorption in
the constituent materials is discussed.
The centre wavelength lambda of the negative refractive
index band can be tuned over a wide frequency
range from deep infrared to terahertz (110 THz) frequency ranges.
This can
lead to efficient optical components for terahertz beams, which
are required in many scientific and technological applications,
ranging from the imaging of biological materials to manipulating
quantum states in semiconductors, from drug discovery and medical
imaging to security screening.
 Power (total and differential) of a dipole radiating anywhere inside or
outside a multilayered sphere has been determined.
Dipole can be located either outside or embedded anywhere within
the multilayered sphere. Among many other quantities, Green's function
at coinciding spatial arguments,
radiative decay rates, the Ohmic loss contribution to the nonradiative decay rates,
and level shifts have been determined.
A cumbersome algorithm of H. Chew, P. J. McNulty, and M. Kerker,
Raman and fluorescent scattering by molecules embedded
in concentric spheres, J. Opt. Soc. Am. 66, 440444 (1976) is avoided and
a new transfer matrix alternative has been provided. The results presented in
Annals
of Physics (NY) 315(2), 352418 (2005) (published online on 7 October 2004, although
it was not straightforward to publish it; see
story behind this article), where it has
since belonged for over one year to the
top 5 most downloaded articles,
may find various applications for inelastic lightscattering (fluorescence or Raman)
spectroscopy for characterizing single micrometer or nanometer sized particles, nanoplasmonics,
surface enhanced Raman scattering (SERS),
in LIDAR applications for remote sensing of both molecular
and particulate constituents of atmosphere, engineering of the
radiative decay for biophysical and biomedical applications, imaging of buried
saturated fluorescent molecules and imaging of surfaces in nearfield
optical microscopy, in the study of the effects of light absorption
and amplification on the stimulated transition rates of the electricdipole
emission of atoms or molecules embedded in micro or nanostructured spheres,
stimulated Raman scattering, the interplay
between lasing and stimulated Raman scattering, etc.
Here you can download a limited Windows executable
chew (download also material data
file Audat.dat), which calculates
the electric dipole radiated power loss together with the dipole power
loss due to Ohmic losses for a coated SiO2@X@SiO2 sphere in water. Refractive index
of SiO2 is taken to be 1.45, that of water 1.33, and that of X (e.g., gold, silver, etc.) you
can supply yourself. The sphere options are identical
to that in scattering from a
multilayered sphere. You can download full code here.
My second article
``Spectroscopic properties of a twolevel atom
interacting with a complex spherical nanoshell",
Chem. Phys. 317(1), 115 (2005)
(published online on 9 August 2005) [preprint
available as
quantph/0412094],
deals with an application of the theory presented in
Annals
of Physics (NY) 315(2), 352418 (2005) to nanomatryoshka plasmonic spherical
structures of Prodan et al. [see Science 302, 419 (2003)].
You can download here accompanying source F77 code CHEWFS
and reproduce all the figures in my article. Windows executable is
available as an online Appendix A of my article.

Any dielectric material can be used to fabricate a photonic
crystal with a sizeable and robust complete photonic bandgap (CPBG) in three dimensions,
as long as small metal inclusions can be added.
These finding (i) open the door for any semiconductor
and polymer material to be used as a genuine
building block for the creation of photonic crystals with a CPBG
and (ii) significantly increase the possibilities
for experimentalists to realize a sizeable and robust CPBG at
nearinfrared and in the visible. See my contribution K7.5,
Photonic
Crystals at NearInfrared and Optical Wavelengths
[pdf],
in the Proceedings of
the MRS Fall Meeting 2001  BB symposium. A more complete version
can be found in my article
Metallodielectric diamond and zincblende photonic structures,
Phys. Rev. B 66, 115109 (2002)
[condmat/0209188]
[pdf].
In a recent development, purely dielectric diamond structures have been
fabricated by F. GarciaSantamaria et al, Nanorobotic Manipulation of
Microspheres for OnChip Diamond Architectures, Adv. Matter. 14, 14441147 (2002).

Exponentially convergent lattice sums of the twodimensional (2D)
freespace periodic (in one dimension) Green function were calculated.
These results are discussed
in my Opt.
Lett. 26, 11191121 (2001)
[pdf].
Full calculational details, together with the case of a 1D lattice
in 3D, have been presented in a followup
Quasiperiodic Green's functions of the Helmholtz and Laplace equations,
J. Phys. A: Math. Gen.
39, 1124711282 (2006)
[erratum]
[mathph/0602021].
The accompanying numerical code OLA is available
here and some additional information
on that story is supplied here.

For a diamond lattice of dielectric spheres,
the bulk photonic KKR method yielded quantitatively different results
from earlier planewave calculations.
See Metallodielectric diamond and zincblende photonic
structures,
Phys. Rev. B 66, 115109 (2002)
[condmat/0209188]
[pdf],
together with my comment and read an additional
information on that story supplied
here.

The article
H. van der Lem and A. Moroz, Towards twodimensional complete
photonicbandgap structures below infrared wavelengths,
J.
Opt. A: Pure Appl. Opt. 2, 395399 (2000) [pdf]
was the first one emphasize the importance of filling the pores
of a purely dielectric 2D air hole photonic crystal with silver, resulting in
a 2D lattice of metallic wires embedded in a dielectric matrix,
in order to obtain an elusive complete photonic bandgap (i.e. common for
both polarizations and for all propagation directions) in the visible]
 An fcc arrangement of metal spheres can open a full
photonic band gap in the visible. Read more in
``Threedimensional complete photonic bandgap structures
in the visible,"
Phys. Rev. Lett. 83, 52745277 (1999).
 A critical dielectric contrast for opening a complete photonic band gap
in an inverted opal structure has been independently determined by the bulk
photonic KKR method. Read more in ``Photonic band gaps of
threedimensional facecentered cubic lattices,"
J.
Phys.: Condens. Matter 11, 9971008 (1999).
 Some peculiar features have been established in a spindependent
AharonovBohm scattering. Read more in
``The singleparticle density of states,
phaseshift flip, bound states, and a resonance in the presence
of an AharonovBohm potential,"
Phys. Rev. A 53, 669694 (1996).
[
An early (pre)history
of acoustic and photonic crystals 
Some photonic crystal headlines, at least 25 years old ...
]
[Photonic and computational links
 An early history of negative refractive index
metamaterials
]
Press releases:
Crystals of metal spheres may enable tunable CPBG's,
HighTech Materials Alert, April 14, 2000.
Interview with local newspaper Podvihorlatske noviny,
21.11.2011 (in Slovak).
Numerical codes
Some pictures and videos
 Sometimes I must have revealed who has actually
been writing my articles
 Daughter Alexandra at age of 3
 ... and as 6 years old
 With Karin, the youngest family member, in 2003
 Karin one year later
 Together with Costas Soukoulis, at the conference
on Optical Probes of Conjugated Polymers and Photonic Crystals, Salt Lake City,
1519 February, 2000
 In Japan during PECS II,
Sendai, 810 March, 2000
 Together with Vasily Klimov
during my visit of Taiwan, October 2009
 Karin performing
La Valse d'Amelie
von Yann Thiersen
 Karin performing
Comptine d'un autre été
von Yann Thiersen
[Ever heard of
supervulcano,
megatsunami,
supermassive black holes,
or
superbug?
Find more in
Horizon archive
of a magnificent
BBC Horizon series]
[ Why God never received tenure at a university 
Danger in making predictions ]
[
How to distinguish between work and prison]
[
Rejecting Nobel class articles
and resisting Nobel class discoveries]
[
Web page of my former Soft Condensed Matter
Group of the University of Utrecht AMOLF ]
[
Back to Main page

Full list of my scientific publications

List of my publications
in Scitation

My most frequently
cited articles
]
[
Selected Links on Photonics,
Photonic Crystals, Numerical Codes, Free Software
]
© Alexander Moroz, last updated on June 3, 2015