ITQW07 The Ninth International Conference on Intersubband Transitions in Quantum Wells
Sunday 9th-Friday 14th September 2007
Ambleside, Cumbria, U.K.

ITQW 07 Programme

Day 1 Day 2 Day 3 Day 4 Day 5
Click on the titles to download the PDF abstracts.

Thursday 13th September

ORALS

Time

Topic

Presenting author

Title

09.00-09.40

 

N Iizuka, Toshiba Corporation, Japan (INVITED)

Intersubband Transition in GaN/AlN Multiple Quantum Wells for Optical Switches.

09.40-10.00

Alternative

 

F H Julien, Université Paris-Sud, Paris

Room-temperature Intersubband Emission from GaN/AlN Quantum Wells at λ ≈2 μm.

10.00-10.20

materials I

M Halsall, University of Manchester

Growth by MOVPE of AlGaN/GaN structures with intersubband transitions in the 1.2-1.7 μm region of the spectrum.

10.20-10.40

Chair:
M. Giehler

M Tchernycheva, Université Paris-Sud, Paris

 

Intersubband spectroscopy of electron tunnelling in GaN/AlN coupled quantum wells.

 

10.40-11.00

 

 

 

 

 

Coffee

11.00-11.40

 

A A Anappara, Scuola Normale Superiore, Pisa (INVITED)

Harnessing light-matter interaction in intersubband microcavities.

 

 

11.40-12.00

 

Cavities and

 

 

D Austin, University of Sheffield

 

Quantum cascade lasers with facet-patterned nano-antennas for near field vibrational spectroscopy.

12.00-12.20

Applications II

J Heinrich, Universität Wűrzburg

Quantum Cascade Microlasers with Two-Dimensional Photonics Crystal Reflectors.

12.20-12.40

 

 

V Moreau, Université Paris-Sud, Paris

Direct imaging of a laser mode via mid-infrared near-field microscopy.

12.40-13.00

Chair:
M. Wanke

P Dean, University of Leeds

Diffuse Terahertz Reflection Imaging Using Quantum Cascade Lasers.

1-2 pm

 

 

Lunch

16.00-16.20

 

K. Akita, Institute of Advanced Industrial Science and Tech, Japan

Ultrafast Intersubband All-Optical Switch in Wide-gap II-VI Quantum Well toward Lower Switching Energy Operation.

16.20-16.40

Alternative

G Sun, University of Massachusetts

Strain Free Ge/GeSiSn Quantum Cascade Laser Based on L-valley Intersubband Transitions.

16.40-17.00

materials II

M Virgilio, University of Pisa

Selection rules for intersubband transitions in valley split [001]-Ge quantum wells.

17.00-17.20

Chair: C. Gmachl

L Lever, University of Leeds

The effects of inter-diffusion in Si-SiGe quantum cascade devices.

 

17.20-17.40

 

 

Tea and refreshments

 

POSTERS

 

 

 

 

 

 

P Aivaliotis, University of Sheffield

Increasing the dot density in quantum dot infrared photodetectors via antimony-mediated dot formation.

 

Posters II

S Menzel, University of Sheffield

Electron Capture and Relaxation in N-Type InAs/GaAs Quantum Dots.

 

 

 

K Král, Institute of Physics of the ASCR, Cz.

 

Quantum effects in optical spectra line shapes and electronic relaxation in quantum dots.

 

and

W Sheng, Fudan University, Shanghai

Origins of linear polarization of intersubband transitions in InAs/GaAs self-assembled quantum dots: a new picture.

17.40-19.00

Refreshments

A Vardi, Technion Institute of Technology, Israel

TE Polarized MIR Intraband Photodetection in Self Assembed GaN/AlN Quantum Dots.

 

 

M Austerer, University of Technology, Vienna

Nonlinear light generation in GaAs quantum-cascade lasers.

 

 

M Scheinert, Paul Scherrer Institut, Switzerland

Raman Lasing and Femto-Second Intersubband Relaxation of coupled GaInAs/InAlAs QWs.

 

 

J Bai, Institute of Technology, Georgia, U.S.A.

Performance Analysis of Mid-Infrared Quantum Cascade Lasers with Enhanced Optical Nonlinearity.

 

 

A Lisauskas, Goethe University, Frankfurt, Germany

Internal Mixing in Active Semiconductor Devices for Room-Temperature Generation of Tuneable Continuous-Wave Terahertz Radiation.

 

 

I Karabulut, University of Selcuk

The Second-Order Nonlinear Optical Susceptibilities of an Asymmetric Rectangular Quantum Well.

 

 

 

L Nevou, Université, Paris-Sud, France

 

Second-harmonic generation of λ~1 μm enhanced by intersubband transitions of GaN/AlN quantum wells.

 

 

B Passmore, Univerersity of Arkansas

Near-Infrared wavelength intersubband transitions in hexagonal and cubic GaN/AlN short period superlattices.

 

 

A Ishida, Shizuoka University, Japan

Normal Incident Intersubband Absorptions in EuTe/PbTe Superlattices.

 

 

A Valavanis, University of Leeds

n-type Si/siGe quantum cascade structures.

 

 

A Valavanis, University of Leeds

Intervalley mixing and intersubband transitions in n-type Si/SiGe quantum wells.

 

 

A Nafidi, Institute of Physics, New York

Band structures and new magneto-transport properties in HgTe/CdTe superlattices.

 

 

E Benveniste, University Paris Diderot

Experimental and theoretical study of intersubband electroluminescent diodes based on different material systems.

 

Posters II

A Hugi, University of Neuchâtel

Room temperature continuous wave operation of an external cavity quantum cascade laser.

 

 

M Zaluzny, M Curie-Sklodowska University

Microcavity effect on the nonlinear intersubband absorption in multiple-quantum-well structures: the strong coupling regime.

 

 

M Bahriz, Université, Paris-Sud

Design of mid-Ir and THz quantum cascade laser cavities with complete TM photonic bandgap.

 

 

and

 

M Maineult, Université Denis Diderot, Paris

 

Far Field Beam Patterns of Terahertz Quantum Cascade Lasers.

 

 

J Semmel, Wűrzburg University

Edge Emitting InP based Quantum Cascade Microlasers with Deeply Etched Bragg Mirrors.

 

 

L Mahler, Scuola Normale Superiore, Pisa

Terahertz quantum cascade lasers with quasi-periodic resonators.

17.40-19.00

 

G Fasching, Vienna University

Whispering-Gallery Quantum-Cascade Lasers in the Terahertz Frequency Regime.

 

 

J Plumridge, Imperial College, London

Quantum Metamaterials for Plasmonics and Strong Coupling.

 

Refreshments

J  N Hovenier, Delft University

Beam patterns of distributed feedback surface-plasmon THz quantum cascade lasers.

 

 

M Carras, QCL Laboratory

Broadband loss measurements in passive and active mid-infrared waveguides using Fabry-Pérot resonances.

 

 

P Aivaliotis, University of Sheffield

Experimental and theoretical investigation of the spectral Stark shift in quantum dots-in-a-well infrared photodetectors.

 

 

A Gomez, University of Paris

Magneto-transport measurements in Quantum Cascade Detectors.

 

 

S K Haywood, University of Hull

A Strain-compensated Mid-infrared Quantum Well Photodetector Operating at Zero Bias up to 250 K and in Photoconductive Mode up to 300K.

 

 

M R Matthews, Imperial College, London

Transient photoconductivity measurements of carrier lifetimes in a InAs/In0.15Ga0.85As Dots-in-a-well detector.

 

 

A Nedelcu, Thales Research and Technology

Quantum Well Infrared Photodetectors for two-colour MWIR imagery.

 

 

E O Karabulut, University of Selcuk

Intensity-Dependent Refractive Index of an Asymmetric Rectangular Quantum Well

 

 

V Berger, University of Paris

QCDs versus QWIPs

 

 

 

H Schneider, Forschungszentrum, Dresden

Intersubband relaxation dynamics in InGa/AlAsSb multiple quantum wells.

 

 

G Bahir, Technion Institute-Israel

Negative Intraband NIR Photoconductivity in GaN/A1N Quantum Dots

 

 

 

G. Bahir,Technion Institute-Israel

Unpolarized Itersubband Photocurrent in Te Doped GaInAsN/GaAlAs quantum well Infrared Photodector

 

 

 

A. Udal, University of Technology, Tallin, Estonia

Efficiency Estimation for a Broadband 7 THz Radiation Source with GaAs/AlGaAs Parabolic Quantum Wells.

 

 

K.Nontapot, Virginia Tech.

Carrier Dynamics in InSb Based Quantum Well Structures.

Latest news

 

L.Sirigu

Terahertz Quantum Cascade Laser grown by low-pressure metalorganic vapour phase epitaxy.

Latest news

 

W. Freeman

Proposed use of Step Quantum Wells for Terahertz Quantum cascade Lasers.

Latest news

 

B.N. Behnken

Use of 2.7-Thz quantum Cascade Laser and Microbolometer Camera for Imaging of Concealed Objects

 

  7 pm

 

 

Gala Dinner