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3521
Picosecond Creation of Switchable Optomagnets from a Polar Antiferromagnet with Giant Photoinduced Kerr Rotations
Published 2021“…It is accomplishable by utilizing circularly polarized laser pulses to excite spin-flip transitions in polar antiferromagnets that have no spin canting, traditionally hard to control without very strong magnetic fields. …”
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Article -
3522
A few-picosecond and high-peak-power passively mode-locked erbium-doped fibre laser based on zinc oxide polyvinyl alcohol film saturable absorber
Published 2018“…Self-started mode-locked laser pulses have been generated at a relatively low pump power of 42 mW with a fundamental repetition rate and pulse duration of 3.26 MHz and 2.60 ps, respectively. …”
Article -
3523
Review: laser-induced breakdown spectroscopy (LIBS) a promising technique, its limitations and a proposed method
Published 2012“…We will make use of multiple simultaneous laser pulses, which are supposed to play a significant role in improving the analytical accuracy of LIBS particularly for non homogeneous samples. …”
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Article -
3524
BLEPHAROPLASTY AND PERIOCULAR SKIN RESURFACING WITH NEW GENERATION ER:YAG LASER
Published 2002-12-01“…The high repetition rate of consecutive laser pulses (50 Hz at 120 mJ energy) accounts for accumulation of thermal load in tissue, and thus leads to complete hemostasis of the cut tissue. …”
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Article -
3525
Prevention and treatment of acute and chronic radiodermatitis
Published 2017-11-01“…Keywords: acute radiodermatitis, chronic radiodermatitis, low level light therapy, laser, pulsed dye, prevention, management, skin care…”
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Article -
3526
Subthreshold continuous wave autofluorescence-controlled laser treatment of chronic central serous chorioretinopathy
Published 2018-01-01“…Each eye was subjected to a direct laser treatment of leakage points by 532 nm continuous wave low energy laser pulses, which were kept invisible by reducing the power to 70% of the threshold test spot. …”
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Article -
3527
Beyond transcoherent states: Field states for effecting optimal coherent rotations on single or multiple qubits
Published 2023-03-01“…Semiclassically, laser pulses can be used to implement arbitrary transformations on atomic systems; quantum mechanically, residual atom-field entanglement spoils this promise. …”
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Article -
3528
Cortical activation changes during repeated laser stimulation: a magnetoencephalographic study.
Published 2011-01-01“…One set of stimuli encompassed 10 laser pulses occurring at 2.5 s intervals. Parameters of laser stimulation were optimised to elicit a pleasant warm sensation upon a single stimulus with a rise of skin temperature after repeated stimulation not exceeding the threshold of C mechano-heat fibres. …”
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Article -
3529
Few-Femtosecond Dynamics of Free-Free Opacity in Optically Heated Metals
Published 2022-05-01“…The advent of femtosecond laser pulses and extreme-ultraviolet sources allowed one to put theoretical models to the test. …”
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Article -
3530
Semiconductor Characterization by Terahertz Excitation Spectroscopy
Published 2023-04-01“…Surfaces of semiconducting materials excited by femtosecond laser pulses emit electromagnetic waves in the terahertz (THz) frequency range, which by definition is the 0.1–10 THz region. …”
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Article -
3531
Tilted pulse front pumping techniques for efficient terahertz pulse generation
Published 2023-10-01“…Abstract Optical rectification of femtosecond laser pulses has emerged as the dominant technique for generating single- and few-cycle terahertz (THz) pulses. …”
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Article -
3532
Quarter Century Development of Laser Peening without Coating
Published 2020-01-01“…To extend the applicability, fiber-delivery of intense laser pulses was developed in parallel and has been used in NPRs since 2002. …”
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Article -
3533
Ultrafast Laser Writing Deep inside Silicon with THz-Repetition-Rate Trains of Pulses
Published 2020-01-01“…Here, we explore a new approach irradiating silicon with trains of femtosecond laser pulses at repetition rates up to 5.6 THz that is order of magnitude higher than any source used for laser processing so far. …”
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Article -
3534
Adaptive Fiber Source for Label-free Nonlinear Microscopy
Published 2024“…We achieve high spectral-temporal-spatial tunability in the output laser pulses of the MMF, resulting in a broadband high-peak-power source. …”
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Thesis -
3535
Development of clinical photoacoustic imaging system
Published 2016“…Light absorbances in embedded objects at various depths within multilayered tissues were determined by Monte Carlo simulations of light transport in turbid medium to optimize near-infrared laser pulses of 670-nm wavelength delivery for maximum optical penetration. …”
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Final Year Project (FYP) -
3536
Progress towards a demonstration of multi-pulse laser wakefield acceleration and implementation of a single-shot wakefield diagnostic
Published 2015“…<p>An ongoing experiment is described to demonstrate the principle of multi-pulse laser wakefield acceleration, in which a plasma wakefield is resonantly excited by a train of laser pulses, spaced by the plasma wavelength. Particle-in-cell simulations of the initial single-pulse experimental setup are presented, in order to calculate the expected signal. …”
Thesis -
3537
Correlation of optical anisotropy with structural changes in Ge2Sb2Te5
Published 2018“…While the amorphous-to-crystalline phase transition in GST has generally been understood to proceed via a thermal mechanism, significant optical anisotropy (measured by circular dichroism (CD) spectroscopy in this work) strongly suggests that there is an electronic athermal component of the phase change induced by the handedness of circularly polarised nanosecond laser pulses and implies the existence of chiral structures or motifs. …”
Thesis -
3538
Singlet-triplet dephasing in radical pairs in avian cryptochromes leads to time-dependent magnetic field effects
Published 2023“…B1/2, a parameter that characterizes the magnetic field-dependence of the reactions, was found to be larger than expected on the basis of hyperfine interactions and to increase with the delay between pump and probe laser pulses. Semiclassical spin dynamics simulations show that this behavior is consistent with a singlet–triplet dephasing (STD) relaxation mechanism. …”
Journal article -
3539
The current practice of assisted hatching for embryos in fertility centres: a general survey
Published 2022“…In contrast, only 64.6% (73/113) of centres administrated AHpET; the application of AHpET was even lower in UK-based centres (36.6% [15/41]). Although laser pulses have become the predominant technique for AH, significant variation existed in the precise strategy. …”
Journal article -
3540
Quantum electrodynamic control of matter: cavity-enhanced ferroelectric phase transition
Published 2020“…To avoid inevitable heating, pump-probe setups with ultrashort laser pulses have so far been used to study transient light-induced modifications in materials. …”
Journal article