Investigate extreme light-matter interactions

Md Selim Habib
Oct 20, 2025

Investigating extreme light–matter interactions in hollow-core fibers is crucial for advancing ultrafast nonlinear optics. By confining intense laser pulses within gas- or plasma-filled microstructures, these fibers provide a unique platform to explore phenomena such as soliton dynamics and strong-field ionization under precisely controlled conditions. The main goals of this project are to unveil new regimes of nonlinear light propagation, develop compact sources of coherent radiation from the ultraviolet to mid-infrared, and enable next-generation applications in attosecond science, quantum technologies, and high-field spectroscopy.

  • Soliton pulse compression
  • Supercontinuum generation
  • Efficient UV laser source design
  • Develop low-cost, compact and energy-efficient new laser source design
Soliton Hollow-Core Fibers Ultrafast Nonlinear Optics Supercontinuum Generation UNO
Md Selim Habib
Md Selim Habib
Assistant Professor of Electrical Engineering

Hollow-core fibers; Fiber sensors; Ultrafast nonlinear optics

Publications

Hollow-core breakthrough
A hollow-core optical fibre which surpasses silica fibre’s long-standing limits and provides an attenuation below 0.1 dB/km across a …
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2.2 kW single-mode narrow-linewidth laser delivery through a hollow-core fiber
Antiresonant hollow-core fibers (AR-HCFs) have opened up exciting possibilities for high-energy and high-power laser delivery because …
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Tunable dispersion and supercontinuum generation in disordered glass-air anderson localization fiber
In this paper, we discuss chromatic dispersion properties of transverse Anderson localization optical fiber (TALOF) and their …
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Noise performance and long-term stability of near-and mid-IR gas-filled fiber Raman lasers
Stimulated Raman scattering (SRS) enabled by the emerging gas-filled low-loss anti-resonant hollow-core fiber (ARHCF) technology opens …
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Multi-wavelength high-energy gas-filled fiber Raman laser spanning from 1.53 µm to 2.4 µm
In this work, we present a high-pulse-energy multi-wavelength Raman laser spanning from 1.53 µm up to 2.4 µm by employing the cascaded …
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Noise and spectral stability of deep-UV gas-filled fiber-based supercontinuum sources driven by ultrafast mid-IR pulses (Editor choise)
Deep-UV (DUV) supercontinuum (SC) sources based on gas-filled hollow-core fibers constitute perhaps the most viable solution towards …
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High pulse energy and quantum efficiency mid-infrared gas Raman fiber laser targeting CO2 absorption at 4.2 µm
In this Letter, we demonstrate a high pulse energy and linearly polarized mid-infrared Raman fiber laser targeting the strongest …
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S2 measurements showing suppression of higher order modes in confined rare earth doped large core fibers
We present a detailed investigation on higher order mode suppression due to differential gain in large mode area step index fiber …
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Mid-IR supercontinuum generation in birefringent, low loss, ultra-high numerical aperture Ge-As-Se-Te chalcogenide step-index fiber
This work reports on the fabrication and subsequent supercontinuum generation in a Ge-As-Se-Te/Ge-As-Se core/clad chalcogenide …
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Extreme UV light generation through dispersive wave trapping in a tapered gas-filled hollow fiber
In this letter, we demonstrate how the soliton-plasma interaction initiates trapping of the generated dispersive waves (DWs) in an …
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Deep-UV to mid-IR supercontinuum generation driven by mid-IR ultrashort pulses in a gas-filled hollow-core fiber
Supercontinuum (SC) generation based on ultrashort pulse compression constitutes one of the most promising technologies towards …
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Multioctave supercontinuum from visible to mid-infrared and bend effects on ultrafast nonlinear dynamics in gas-filled hollow-core fiber (Editor's Choice)
Broadband supercontinuum generation is numerically investigated in a Xe-filled nested hollow-core antiresonant (HC-AR) fiber pumped at …
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Near-octave intense mid-infrared by adiabatic down-conversion in hollow anti-resonant fiber
We show that adiabatic down-conversion can be made the dominant four-wave mixing process in an anti-resonant hollow-core fiber for …
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Poor-man’s model of hollow-core anti-resonant fibers
We investigate various methods for extending the simple analytical capillary model to describe the dispersion and loss of anti-resonant …
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Multi-stage generation of extreme ultraviolet dispersive waves by tapering gas-filled hollow-core anti-resonant fibers
In this work, we numerically investigate an experimentally feasible design of a tapered Ne-filled hollow-core anti-resonant fiber and …
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Soliton-plasma nonlinear dynamics in mid-IR gas-filled hollow-core fibers
We investigate numerically soliton-plasma interaction in a noble-gas-filled silica hollow-core anti-resonant fiber pumped in the mid-IR …
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