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Ultrashort Pulse Generation from Terahertz Quantum Cascade Lasers

Total Cost €


EC-Contrib. €






 ULTRAQCL project word cloud

Explore the words cloud of the ULTRAQCL project. It provides you a very rough idea of what is the project "ULTRAQCL" about.

hybrid    metrology    gain    generation    curiosity    platform    photoconductive    generating    locked    cascade    little    light    breakthrough    nature    qcl    domains    gap    starting    laser    self    schemes    frequency    chemical    sectors    chip    ultrafast    ubiquitous    fundamental    width    interactions    thz    impressive    nonlinear    benefit    broadband    pulse    lasers    mode    optical    electromagnetic    frequencies    modulation    terahertz    imaging    engineered    switches    passive    underpinning    excitation    laboratory    powers    qcls    semiconductor    realised    compensation    practical    spectral    radical    broad    suitable    speed    sapphire    proven    crystals    destructive    spectrum    ultraqcl    emission    hence    grown    dispersion    entirely    intense    pulses    first    physical    bandwidth    switched    biological    plethora    industrial    sciences    quantum    modelocked    device    bandstructure    technological    ti    tool    foundational    benchmark    communications   

Project "ULTRAQCL" data sheet

The following table provides information about the project.


Organization address
address: RUE MICHEL ANGE 3
city: PARIS
postcode: 75794

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country France [FR]
 Project website
 Total cost 2˙798˙445 €
 EC max contribution 2˙798˙445 € (100%)
 Programme 1. H2020-EU.1.2.1. (FET Open)
 Code Call H2020-FETOPEN-2014-2015-RIA
 Funding Scheme RIA
 Starting year 2015
 Duration (year-month-day) from 2015-10-01   to  2019-03-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
2    UNIVERSITY OF LEEDS UK (LEEDS) participant 742˙318.00
5    UNIVERSITE PARIS-SUD FR (ORSAY CEDEX) participant 341˙138.00


 Project objective

The generation of ultrafast and intense light pulses is an underpinning technology across the electromagnetic spectrum enabling the study of fundamental light-matter interactions, as well as industrial exploitation in a plethora of applications across the physical, chemical and biological sciences. A benchmark system for such studies is the modelocked Ti:Sapphire laser, which has grown from being a laboratory curiosity to an essential tool in a broad range of application sectors. Beyond Ti:Sapphire systems, there have been impressive developments in semiconductor based devices for pulse generation in the optical range. These benefit from low system costs and are an enabling technology in new application domains including high speed communications.

However, in the terahertz (THz) frequency range, with its proven applications in imaging, metrology and non-destructive testing, a semiconductor based technology platform for intense and short pulse generation has yet to be realised. Ultrafast excitation of photoconductive switches or nonlinear crystals offer only low powers, low frequency modulation or broadband emission with little control of the spectral bandwidth.

In the ULTRAQCL project we will breakthrough this technological gap, using THz quantum cascade lasers (QCLs) as a foundational semiconductor device for generating intense and short THz pulses. QCLs are the only practical semiconductor system that offer gain at THz frequencies, hence making them suitable for pulse generation, with the ‘bandstructure-by-design’ nature of QCLs allowing the frequency, bandwidth and pulse width to be entirely engineered. We will demonstrate: the first self-starting (passive) mode-locked THz QCL; the first hybrid modelocked THz QCL; the first gain-switched modelocked QCL; and, the first pulse generation in QCLs with on-chip dispersion compensation. The ULTRAQCL project will implement these radical schemes for pulse generation enabling ultrafast QCLs to become a ubiquitous technology for the THz range.


List of deliverables.
Passive intracavity mode-locking with polaritonic saturable absorber Documents, reports 2019-12-12 09:52:13
Technology showcase event Websites, patent fillings, videos etc. 2019-12-12 09:52:13
Lasing SIT-QCL devices Documents, reports 2019-12-12 09:52:13
Measurement of saturation powers and lifetimes in Ge:As Documents, reports 2019-12-12 09:52:13
Workshop at international QCL school Websites, patent fillings, videos etc. 2019-12-12 09:52:13
ULTRAQCL website Websites, patent fillings, videos etc. 2019-12-12 09:52:13
High field system for THz range Documents, reports 2019-12-12 09:52:13
Generation of sub-10ps pulses Documents, reports 2019-12-12 09:52:12
Realisation of THz polariton system Documents, reports 2019-12-12 09:52:13
Antenna structures Documents, reports 2019-12-12 09:52:12

Take a look to the deliverables list in detail:  detailed list of ULTRAQCL deliverables.


year authors and title journal last update
List of publications.
2019 Luigi Consolino, Annamaria Campa, Davide Mazzotti, Miriam Vitiello, Paolo De Natale, Saverio Bartalini
Bow-Tie Cavity for Terahertz Radiation
published pages: 1, ISSN: 2304-6732, DOI: 10.3390/photonics6010001
Photonics 6/1 2019-12-12
2018 P.B. Vigneron, F. Joint, N. Isac, R. Colombelli, E. Herth
Advanced and reliable GaAs/AlGaAs ICP-DRIE etching for optoelectronic, microelectronic and microsystem applications
published pages: 42-50, ISSN: 0167-9317, DOI: 10.1016/j.mee.2018.09.001
Microelectronic Engineering 202 2019-12-12
2018 Iman Kundu, Feihu Wang, Xiaoqiong Qi, Hanond Nong, Paul Dean, Joshua R. Freeman, Alexander Valavanis, Gary Agnew, Andrew T. Grier, Thomas Taimre, Lianhe Li, Dragan Indjin, Juliette Mangeney, Jérôme Tignon, Sukhdeep S. Dhillon, Aleksandar D. Rakić, John E. Cunningham, Edmund H. Linfield, A. Giles Davies
Ultrafast switch-on dynamics of frequency-tuneable semiconductor lasers
published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-018-05601-x
Nature Communications 9/1 2019-12-12
2017 S. Massabeau, M. Baillergeau, T. Phuphachong, C. Berger, W. A. de Heer, S. Dhillon, J. Tignon, L. A. de Vaulchier, R. Ferreira, J. Mangeney
Evidence of Fermi level pinning at the Dirac point in epitaxial multilayer graphene
published pages: , ISSN: 2469-9950, DOI: 10.1103/physrevb.95.085311
Physical Review B 95/8 2019-12-12
2017 Matthias Knorr, Jürgen Raab, Maximilian Tauer, Philipp Merkl, Dominik Peller, Emanuel Wittmann, Eberhard Riedle, Christoph Lange, Rupert Huber
Phase-locked multi-terahertz electric fields exceeding 13  MV/cm at a 190  kHz repetition rate
published pages: 4367, ISSN: 0146-9592, DOI: 10.1364/ol.42.004367
Optics Letters 42/21 2019-12-12
2019 Jürgen Raab, Christoph Lange, Jessica L. Boland, Ignaz Laepple, Martin Furthmeier, Enrico Dardanis, Nils Dessmann, Lianhe Li, Edmund H. Linfield, A. Giles Davies, Miriam S. Vitiello, Rupert Huber
Ultrafast two-dimensional field spectroscopy of terahertz intersubband saturable absorbers
published pages: 2248, ISSN: 1094-4087, DOI: 10.1364/oe.27.002248
Optics Express 27/3 2019-12-12
2017 K. Maussang, J. Palomo, J.-M. Manceau, R. Colombelli, I. Sagnes, L. H. Li, E. H. Linfield, A. G. Davies, J. Mangeney, J. Tignon, S. S. Dhillon
Monolithic echo-less photoconductive switches as a high-resolution detector for terahertz time-domain spectroscopy
published pages: 141102, ISSN: 0003-6951, DOI: 10.1063/1.4979536
Applied Physics Letters 110/14 2019-12-12
2018 Michele De Regis, Luigi Consolino, Saverio Bartalini, Paolo De Natale
Waveguided Approach for Difference Frequency Generation of Broadly-Tunable Continuous-Wave Terahertz Radiation
published pages: 2374, ISSN: 2076-3417, DOI: 10.3390/app8122374
Applied Sciences 8/12 2019-12-12
2017 B. Paulillo, S. Pirotta, H. Nong, P. Crozat, S. Guilet, G. Xu, S. Dhillon, L. H. Li, A. G. Davies, E. H. Linfield, R. Colombelli
Ultrafast terahertz detectors based on three-dimensional meta-atoms
published pages: 1451, ISSN: 2334-2536, DOI: 10.1364/optica.4.001451
Optica 4/12 2019-12-12
2017 L.H. Li, L. Chen, J.R. Freeman, M. Salih, P. Dean, A.G. Davies, E.H. Linfield
Multi-Watt high-power THz frequency quantum cascade lasers
published pages: 799-800, ISSN: 0013-5194, DOI: 10.1049/el.2017.0662
Electronics Letters 53/12 2019-12-12
2018 Luigi Consolino, Francesco Cappelli, Mario Siciliani de Cumis, Paolo De Natale
QCL-based frequency metrology from the mid-infrared to the THz range: a review
published pages: 181-204, ISSN: 2192-8614, DOI: 10.1515/nanoph-2018-0076
Nanophotonics 8/2 2019-12-12
2018 L.H. Li, K. Garrasi, I. Kundu, Y.J. Han, M. Salih, M.S. Vitiello, A.G. Davies, E.H. Linfield
Broadband heterogeneous terahertz frequency quantum cascade laser
published pages: 1229-1231, ISSN: 0013-5194, DOI: 10.1049/el.2018.6062
Electronics Letters 54/21 2019-12-12
2017 Feihu Wang, Hanond Nong, Tobias Fobbe, Valentino Pistore, Sarah Houver, Sergej Markmann, Nathan Jukam, Maria Amanti, Carlo Sirtori, Souad Moumdji, Raffaele Colombelli, Lianhe Li, Edmund Linfield, Giles Davies, Juliette Mangeney, Jérôme Tignon, Sukhdeep Dhillon
Short Terahertz Pulse Generation from a Dispersion Compensated Modelocked Semiconductor Laser
published pages: 1700013, ISSN: 1863-8880, DOI: 10.1002/lpor.201700013
Laser & Photonics Reviews 11/4 2019-12-12
2019 Katia Garrasi, Francesco P. Mezzapesa, Luca Salemi, Lianhe Li, Luigi Consolino, Saverio Bartalini, Paolo De Natale, A. Giles Davies, Edmund H. Linfield, Miriam S. Vitiello
High Dynamic Range, Heterogeneous, Terahertz Quantum Cascade Lasers Featuring Thermally Tunable Frequency Comb Operation over a Broad Current Range
published pages: 73-78, ISSN: 2330-4022, DOI: 10.1021/acsphotonics.8b01483
ACS Photonics 6/1 2019-12-12
2018 Michele De Regis, Saverio Bartalini, Marco Ravaro, Davide Calonico, Paolo De Natale, Luigi Consolino
Room-Temperature Continuous-Wave Frequency-Referenced Spectrometer up to 7.5 THz
published pages: , ISSN: 2331-7019, DOI: 10.1103/physrevapplied.10.064041
Physical Review Applied 10/6 2019-12-12

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