ORCID Profile
0000-0002-4528-5447
Current Organisations
Technical University of Denmark
,
Danmarks Tekniske Universitet Institut for Elektroteknologi og Fotonik
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Publications
Ultraviolet to mid-infrared gas-filled anti-resonant hollow-core fiber lasers
Publisher: SPIE
Date: 18-04-2021
DOI: 10.1117/12.2592717
Terahertz spectroscopy from air plasmas created by two-color femtosecond laser pulses: The ALTESSE project
Publisher: IOP Publishing
Date: 05-06-2019
Supercontinuum generation from deep-UV to mid-IR in a noble gas-filled fiber pumped with ultrashort mid-IR pulses
Publisher: OSA
Date: 2018
Wavelength Scaling of THz Emissions by Two-Color Filaments in Air
Publisher: IEEE
Date: 06-2019
Mid-Infrared Supercontinuum Generation Spanning More Than 11 μm in a Chalcogenide Step-Index Fiber
Publisher: OSA
Date: 2015
Frequency-resolved characterization of broadband two-color air-plasma terahertz beam profiles
Publisher: Optica Publishing Group
Date: 27-02-2023
DOI: 10.1364/OE.482995
Abstract: The frequency-resolved terahertz (THz) beam profile characteristics of a two-color air-plasma THz source were investigated in the broadband frequency range (1-15 THz). The frequency resolution is achieved by combining THz waveform measurements and the knife-edge technique. Our results show that the THz focal spot size is strongly frequency dependent. This has important implications on nonlinear THz spectroscopy applications where accurate knowledge of the applied THz electrical field strength onto the s le is important. In addition, the transition between the solid and hollow beam profile of the air-plasma THz beam was carefully identified. Far from the focus, the features across the 1-15 THz range have also been carefully examined, revealing the characteristic conical emission patterns at all frequencies.
Coherent supercontinuum bandwidth limitations under femtosecond pumping at 2 µm in all-solid soft glass photonic crystal fibers
Publisher: The Optical Society
Date: 12-12-2016
DOI: 10.1364/OE.24.029406
Optical Cherenkov radiation by cascaded nonlinear interaction: an efficient source of few-cycle energetic near- to mid-IR pulses
Publisher: The Optical Society
Date: 25-10-2011
DOI: 10.1364/OE.19.022557
Wavelength scaling of terahertz pulse energies delivered by two-color air plasmas
Publisher: The Optical Society
Date: 14-03-2019
DOI: 10.1364/OL.44.001488
Ultra-low-noise supercontinuum generation with a flat near-zero normal dispersion fiber
Publisher: The Optical Society
Date: 22-04-2019
DOI: 10.1364/OL.44.002216
Optical Cherenkov radiation in ultrafast cascaded second-harmonic generation
Publisher: American Physical Society (APS)
Date: 03-12-2010
Remote terahertz spectroscopy from extended two-color plasma filaments: The ALTESSE 2 project
Publisher: IOP Publishing
Date: 27-06-2023
Abstract: Coherent time-domain spectroscopy (TDS) using terahertz radiation is valuable for fundamental science, security, and medical applications. This study investigates the performance of air-biased coherent detection terahertz spectroscopy (ABCD-THz) when an extended plasma filament is created in the air over long distances. We report on the latest results obtained within the follow-up of the ALTESSE project (Bergé L. et al ., EPL , 126 (2019) 24001) whose objective is to measure a set of spectral signatures characterizing suspicious materials over meter-long distances. As one of the most critical steps towards routinely applying this technique, we verified the feasibility of a remote THz time-domain spectroscopy by loosely focusing two-color ultrashort laser pulses at more than 3 meters from the laser source. The absorption spectra of amino acids and explosives analyzed in such a filamentation geometry are compared with those obtained using a standard ABCD scheme where the plasma is generated at much shorter distances of .
Frequency-Resolved Focal Spot Size of a Two-Color Air-Plasma THz Beam
Publisher: IEEE
Date: 28-08-2022
Deep-UV to Mid-IR Supercontinuum Generation driven by Mid-IR Ultrashort Pulses in a Gas-filled Hollow-core Fiber
Publisher: Springer Science and Business Media LLC
Date: 14-03-2019
DOI: 10.1038/S41598-019-39302-2
Abstract: Supercontinuum (SC) generation based on ultrashort pulse compression constitutes one of the most promising technologies towards ultra-wide bandwidth, high-brightness, and spatially coherent light sources for applications such as spectroscopy and microscopy. Here, multi-octave SC generation in a gas-filled hollow-core antiresonant fiber (HC-ARF) is reported spanning from 200 nm in the deep ultraviolet (DUV) to 4000 nm in the mid-infrared (mid-IR) having an output energy of 5 μJ. This was obtained by pumping at the center wavelength of the first anti-resonant transmission window (2460 nm) with ~100 fs pulses and an injected pulse energy of ~8 μJ. The mechanism behind the extreme spectral broadening relies upon intense soliton-plasma nonlinear dynamics which leads to efficient soliton self-compression and phase-matched dispersive wave (DW) emission in the DUV region. The strongest DW is observed at 275 nm which corresponds to the calculated phase-matching wavelength of the pump. Furthermore, the effect of changing the pump pulse energy and gas pressure on the nonlinear dynamics and their direct impact on SC generation was investigated. This work represents another step towards gas-filled fiber-based coherent sources, which is set to have a major impact on applications spanning from DUV to mid-IR.
The 2023 terahertz science and technology roadmap
Publisher: IOP Publishing
Date: 05-04-2023
Abstract: Terahertz (THz) radiation encompasses a wide spectral range within the electromagnetic spectrum that extends from microwaves to the far infrared (100 GHz–∼30 THz). Within its frequency boundaries exist a broad variety of scientific disciplines that have presented, and continue to present, technical challenges to researchers. During the past 50 years, for instance, the demands of the scientific community have substantially evolved and with a need for advanced instrumentation to support radio astronomy, Earth observation, weather forecasting, security imaging, telecommunications, non-destructive device testing and much more. Furthermore, applications have required an emergence of technology from the laboratory environment to production-scale supply and in-the-field deployments ranging from harsh ground-based locations to deep space. In addressing these requirements, the research and development community has advanced related technology and bridged the transition between electronics and photonics that high frequency operation demands. The multidisciplinary nature of THz work was our stimulus for creating the 2017 THz Science and Technology Roadmap (Dhillon et al 2017 J. Phys. D: Appl. Phys. 50 043001). As one might envisage, though, there remains much to explore both scientifically and technically and the field has continued to develop and expand rapidly. It is timely, therefore, to revise our previous roadmap and in this 2023 version we both provide an update on key developments in established technical areas that have important scientific and public benefit, and highlight new and emerging areas that show particular promise. The developments that we describe thus span from fundamental scientific research, such as THz astronomy and the emergent area of THz quantum optics, to highly applied and commercially and societally impactful subjects that include 6G THz communications, medical imaging, and climate monitoring and prediction. Our Roadmap vision draws upon the expertise and perspective of multiple international specialists that together provide an overview of past developments and the likely challenges facing the field of THz science and technology in future decades. The document is written in a form that is accessible to policy makers who wish to gain an overview of the current state of the THz art, and for the non-specialist and curious who wish to understand available technology and challenges. A such, our experts deliver a ‘snapshot’ introduction to the current status of the field and provide suggestions for exciting future technical development directions. Ultimately, we intend the Roadmap to portray the advantages and benefits of the THz domain and to stimulate further exploration of the field in support of scientific research and commercial realisation.
Ultra-low Noise Supercontinuum Generation with Flat-near Zero All Normal Dispersion Pure Silica Fiber at GHz Reptition Rate
Publisher: OSA
Date: 2018
Femtosecond supercontinuum generation with noisy pumps in normal dispersion fibers with zero crossings
Publisher: OSA
Date: 2019
Plasmonic Resonances Affecting Terahertz Generation in Laser-Induced Gas-Plasmas
Publisher: IEEE
Date: 09-2018
Influence of dispersion of nonlinearity on coherent supercontinuum generation bandwidth in photonic crystal fibers pumped at 2 μm
Publisher: IEEE
Date: 06-2017
Mid-infrared supercontinuum covering the 1.4–13.3 μm molecular fingerprint region using ultra-high NA chalcogenide step-index fibre
Publisher: Springer Science and Business Media LLC
Date: 14-09-2014
Ultra-broadband THz spectroscopy for sensing and identification for security applications
Publisher: IEEE
Date: 09-2018
Terahertz emission from laser-driven gas plasmas: a plasmonic point of view
Publisher: The Optical Society
Date: 20-12-2018
Related Organisations
Danmarks Tekniske Universitet Institut For Elektroteknologi Og Fotonik
Location: Denmark
Department Of Photonics Engineering, Technical University Of Denmark
Location: Denmark
Related Funding Activities
No related grants have been discovered for Binbin Zhou.