DALHM

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DALHM Development and Analysis of Left Handed
Materials

FORTH, Crete, Greece Bilkent University, Ankara,
Turkey Imperial College, London, England
2nd year Meeting July 29-30, 2004 Crete, Greece
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In the DALHM project we have three scientific
work packages and an extra one (WP4). WP1
deals with the modeling and characterization of
LHMs WP2 deals with design, fabrication,
creation, assessment, and test of LH
structures WP3 will try to identify several
applications where the LHM technology can bring
revolutionary changes WP4 dealing with the
project management and the dissemination of the
results
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Milestones and expected results for
WP1 Milestones M1.1 (T012) Modeling of LHM
structures M1.2 (T012) Physical characterization
of 1D LHM structures M1.3 (T024) Losses of LHMs
measured and understood. Inversion of the
S-matrix M1.4 (T030) 3D LHM building blocks
modeled Expected results -A better
understanding of the physics of LH
materials -Improvement of the existing tools for
modeling and simulating more complicated
structures -Limits in the losses of LHMs
understood -Design of new LHMs -Derivation of
eeff and meff from reflectance and transmittance
data
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Milestones and expected results for WP2 M2.1
(T012) Fabrication of 1D LH structures M2.2
(T018) Fabrication of 2D LH structures M2.3
(T018) Transmittance and reflectance
measurements M2.4 (T024) Beta version of 3D LH
structures M2.5 (T030) Testing of 3D LH
structures
Milestones and expected results for WP3 M3.1
(T012) Modeling and characterization of LHM
antenna M3.2 (T024) First results on high gain
antennas and mirrors M3.3 (T030) First results
on RF lenses and matching of the free space
impedance Expected results Better understanding
of the new functionalities of LHMs, and their
limitations
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Deliverables of WP1 (FORTH, BILKENT, ICSTM1) D1
(T06) Progress report D2 (T06) Assessment of
the consortium modelling tools D4 (T012)
Progress report D5 (T012) Report on the
properties of basic test structures D7 (T018)
Progress report D9 (T024) Progress report D11
(T024) Theoretical study of the extension of the
LH behavior towards optical frequencies D12
(T030) Progress report D13 (T030) Toolbox for
LHM modeling and its validation by measurements
D14 (T036) Progress report D18 (T036) Report
on the assessment of the extension of LHMs
to optical frequencies
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Deliverables of WP2 (FORTH, BILKENT, ICSTM2) D1
(T06) Progress report D4 (T012) Progress
report D6 (T012) First 1D LH test structures
(FORTH, BILKENT) D7 (T018) Progress report D8
(T018) First 2D LH test structures (FORTH,
BILKENT) D9 (T024) Progress report D10 (T024)
Testing of LH structures and comparison between
theory and experiments (BILKENT, FORTH,
ICSTM2) D12 (T030) Progress report D14 (T036)
Progress report D18 (T036) Report on the
assessment of the extension of LHMs to optical
frequencies
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Deliverables of WP3 (BILKENT, FORTH, ICSTM2) D4
(T012) Progress report D7 (T018) Progress
report D9 (T024) Progress report D12 (T030)
Progress report D14 (T036) Progress report D15
(T036) Development of tunable LH structures D16
(T036) Integrated LH based demonstrators D17
(T036) Report on limitations of LHM technology
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Deliverables of WP4 (FORTH, BILKENT, ICSTM1,2) D3
(T06) Web-page creation (FORTH) D16 (T036)
Progress report Also reports as defined in the
deliverable list, which will include parts
concerning reference to the outside state-of-the
art on LHMs and to results on the dissemination
of the project outcomes. Objectives a) DALHM
consortium management b) Ensure that results from
DALHM are well disseminated throughout the EU,
and also that a good knowledge of
outside state-of-the-art exists and is taken into
account within DALHM. Ensure that the DALHM
results are used by the partners and explore the
utilization of the DALHM results by other EU
industries whenever possible.
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Deliverables for month 24 D9 Progress
report D10 Testing of LH structures and
comparison between theoretical results and
experimental data D11 Theoretical study of the
extension of the LH behavior towards optical
frequencies Deliverables for month 30 D12
Progress report D13 Toolbox for LHM modeling and
its validation by measurements
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Milestones for the first year M1.1 Modeling of
LHM structures M1.2 Physical characterization of
1D LHM structures M2.1 Fabrication of 1D LH
structures M3.1 Modeling and characterization of
LHM antenna Milestones for the second year M2.2
(T018) Fabrication of 2D LH structures M2.3
(T018) Transmittance and reflectance
measurements M1.3 (T024) Losses of LHMs measured
and understood. Inversion of the S-matrix M2.4
(T024) Beta version of 3D structures M3.2
(T024) First results of high gain antennas and
mirrors Milestones for the third year M1.4
(T030) 3D LHM building blocks modeled M2.5
(T030) Testing of 3D LH structures M3.3 (T030)
First results on RF lenses and matching of the
free space impedance.
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Summary conclusions / recommendations A closer
cooperation between the demonstrator part on
medical imaging and the theoretical simulations
is recommended. (Mike and Maria) Compare the
different numerical modeling tools with respect
to dispersive media (one test structure for all
tools with error analysis). (Thomas, Maria,
Soukoulis) Clarify the effect of the small gap
(capacitor) in split ring resonators compared to
closed ring used in current numerical
simulations. (Thomas, ENE. CMS) The issue of
absorption by the substrate and the metals
(different type) should be addressed. What is the
contribution of free carriers in the 10, 35 100
GHz range ? (Ekmel, Maria, CMS) Try to analyze
theoretically as well as experimentally alignment
errors when stacking tens of slit-ring
layers.(Koray, Nikos,Raluca) Parallel
Perp. Compare phase measurements with theory
and try to interpret them. (Ekmel, CMS)
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Summary conclusions / recommendations Try to
understand the effect of the thickness of a
photonic crystal with negative refraction on the
lensing and the imaging properties. (Kaan,
CMS) Try to develop together with theory designs
(symmetry, filling factor) which are more
suitable for the fabrication of 2D and 3D LHM.
(Thomas, Maria, CMS) Develop further the new
ideas towards applications while considering what
is experimentally feasible. (Mike, Ekmel, ENE.
CMS) Clarify resolution of swiss rolls in MRI
machine together with theory. (Mike) The work on
the tapered solenoid concentrator looks like a
promising application and should be continued.
(Mike)
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• Action Items
• Summarize all the theoretical results (Transfer
  matrix, Microwave Studio, FDTD, Inversion etc)
  (Kafesaki, Koschny, Penciu, Tamara, Economou,
  Soukoulis)
• Comparison with experimental results (SRR (open
  close), wires, SRR (open close) wires.
  (Katsarakis, Ozbay)
• Experimental fabrication and measurements (1D and
  2D)
• Circular SRRs and LHMs (Ozbay)
• Rectangular SRRs and LHMs (Katsarakis)
• High frequencies (30 GHz, 100 GHz and THz
  region). Fabrication (Konstandinides Ozbay)
• Measurement of the 30 GHz sample along the
  perpendicular direction (Katsarakis). Ozbay will
  measure the 100 GHz sample along the
  perpendicular direction.

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• To do list
• Report due September 3, 2004
• Answer the questions of the reviewers.
• Write your progress report (D9) as per WP.
• M3.2 (T024) First results of high gain antennas
  and mirrors (Ozbay)
• M1.3 (T024) Losses of LHMs measured and
  understood.
• Inversion of the S-matrix (Ozbay, Nikos, Maria)
• M2.4 (T024) Beta version of 3D structures (CMS)
• 2) Deliverables
• D10 Testing of LH structures and comparison
  between
• theoretical results and experimental data
• D11 Theoretical study of the extension of the LH
  behavior towards optical frequencies
• 3) Phase and Wedge measurements. Do they give the
  same n? (Ozbay, Crete)
• 4) Ozbay to send to Raluca the dimensions of 2d
  LHM., so she can do the retrieval and T.
• 5) Both in 1d and 2d LHM do emission
  measurements.(Ozbay)
• 6) Negative refraction and focusing in 1d and 2d
  LHM (Ozbay)
• 7) Try to introduce ferroelectric in the gaps of
  the SRR for tunable purposes. (Ozbay)
• 8) Fabricate and measure the LHM structure at 100
  GHz (Ozbay)
• 9) Try to introduce magnetic ferrires in the SRR
  to lower the resonance frequency (Nikos)