Martin Cohen

Molecular Attoscope: Pulse Shape Spectroscopy of Electronic Coherence

Loc Ngo, Julia Codere, Javin Ohara, Brian Kaufman et autres

Tracking the coupled motion of electrons and nuclei on their intrinsic timescales is essential to understanding and controlling photochemical transformations. While attosecond techniques have provided unprecedented insight into electronic dynamics, they have largely been restricted to ionic systems, with nuclear motion often …

Code for solving the TDSE and making animation movie

Thi Hoang Loc Ngo, Julia Codere, Javin Ohara, Brian Kaufman et autres

We include: Code_For_TDSE.rar: a Python setup script and a Fortran script for solving the TDSE that support our experimental measurement of benzene. Code_For_Movie.zip: Visualization of coupled nuclear-electron dynamics and their time-resolved ionization signals of benzene. All the details can be found in …

Data from Figs. 2, 3, 4

Thi Hoang Loc Ngo, Julia Codere, Javin Ohara, Brian Kaufman et autres

We use a 4-f AOM-based pulse shaper to create phase-stable, deep-UV pump and probe pulses with sub-10 attosecond relative timing control. This attosecond-precision pulse shaping allows us to resolve long-lived electronic coherences, modulated by nuclear dynamics, via interference between multiple ionization pathways.Data …

Spectral broadening and pulse shaping in the deep ultraviolet

Julia Codere, Brett J. Pearson, Brian Kaufman, Martin Cohen et autres

We report the generation and shaping of ∼20 femtosecond pulses in the deep ultraviolet (DUV). Our approach combines spectral broadening in a stretched hollow-core fiber with compression and shaping via an acousto-optic modulator-based pulse shaper. The pulse shaper allows for automatic compression, …

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Liberalism, Human Values and Schools as Microcosms of Society

Martin Cohen

This seminal volume provides an accessible overview of key ethical and philosophical debates surrounding contemporary education policy, advocating for a future in education that is primarily driven by prioritising social values. Grounded in the educational ideas of recent British liberal and philosophical …

Education as the foundation of a democratic society

Martin Cohen

John Dewey&s;s emphasis on democracy in the classroom today reappears as calls for more “critical thinking”. Because, as Brenda Almond puts it, what is at play in schools is the fundamental freedom to think. Like the 19th-century European thinkers, Dewey saw not …

Canadian Patients With Axial Spondyloarthritis Require Almost a Decade To Be Diagnosed Leading to Severe Functional Limitation. Results From the International Map of Axial Spondyloarthritis (IMAS)

Proton Rahman, Marco Garrido‐Cumbrera, Sherry Rohekar, Michael G. Mallinson et autres

OBJECTIVE: To evaluate the sociodemographic characteristics and disease-related factors associated with diagnostic delay in Canadian patients with axial spondyloarthritis (axSpA). METHODS: Data from 542 Canadian patients who participated in the International Map of Axial Spondyloarthritis online survey were analysed. Diagnostic delay was …

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High repetition-rate pulse shaping of a spectrally broadened Yb femtosecond laser

Julia Codere, Michael Belmonte, Brian Kaufman, Michael Wahl et autres

We demonstrate compression and shaping of few cycle pulses from a high average power ytterbium laser system. The pulses from a commercial 20 W, 100 kHz Yb laser system are spectrally broadened in two-stages using cascaded, gas-filled, stretched hollow-core fibers and then …

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Spectral Broadening and Pulse Shaping in the Deep Ultraviolet

Julia Codere, Brett J. Pearson, Brian Kaufman, Martin Cohen et autres

We demonstrate the production of shaped pulses in the deep ultraviolet using a stretched, hollow-core fiber and an acousto-optic modulator based pulse-shaper.

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High Repetition-Rate Pulse Shaping of a Spectrally Broadened Yb Femtosecond Laser

Julia Codere, Michael Belmonte, Brian Kaufman, Michael Wahl et autres

We demonstrate compression and shaping of few cycle pulses from a high average power Ytterbium laser system. The pulses from a commercial 20 W, 100 kHz Yb laser system are spectrally broadened in two-stages using gas-filled, stretched hollow-core fibers and then compressed …

High Repetition Rate Pulse Shaping of a Spectrally Broadened Yb Femtosecond Laser

Michael Belmonte, Julia Codere, Brian Kaufman, Eric Jones et autres

Using a stretched hollow core fiber and an acousto-optic modulator based pulse shaper, we demonstrate compression, characterization and shaping of ultrashort pulses from a high average power laser system.

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Work-Related Issues and Physical and Psychological Burden in Canadian Patients With Axial Spondyloarthritis: Results From the International Map of Axial Spondyloarthritis

Robert Davies Inman, Marco Garrido‐Cumbrera, Jonathan J. Chan, Martin Cohen et autres

Objective To identify factors associated with work-related issues in Canadian patients with axial spondyloarthritis. Methods Data from 542 Canadian patients who participated in the International Map of Axial Spondyloarthritis online survey were analyzed. Participants who were employed, unemployed, or on short-term disability …

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