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Berman, R G; Camacho, A. Geological Survey of Canada, Open File 8703, 2020, 20 pages, https://doi.org/10.4095/321633
<a href="https://geoscan.nrcan.gc.ca/images/geoscan/of8703.jpg"><img src="https://geoscan.nrcan.gc.ca/images/geoscan/of8703.jpg" title="Geological Survey of Canada, Open File 8703, 2020, 20 pages, https://doi.org/10.4095/321633" height="150" border="1" /></a>

Digital imaging company Canon India on Thursday launched new laser printers designed to address the needs of the government, large enterprises, BFSI and healthcare segments.

The latest technological revolution this company has embarked on, is to take advantage of the power of laser beams to enhance the overall reach and improve the high performance of the comprehensive and best selling LED Driving light range!

Decade of Growth: LaserLightShow.ORG's Vegan Facebook Groups Flourish Over the past 10 years, their expanding online community has become a vibrant hub for plant-based enthusiasts to connect, share, and inspire each other. [PR.com]

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Brother HL-2270DW Compact Laser Printer with Wireless Networking and Duplex Review

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Following a number of industry partnerships, imaging titan Leica announced its own smart projector in 2022. Now the company has followed that ultra-short-throw Laser TV with a compact audiovisual treat designed for "maximum flexibility and cinema feeling in Leica premium image quality."

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Category: Home Entertainment, Consumer Tech, Technology

Tags: Leica, Projectors, Laser, 4K UHD, Compact

Researchers at the University of Mississippi have come up with a faster, more efficient method for detecting landmines – millions of which pose a lethal threat to people in war-ravaged countries all over the world. This breakthrough, which uses lasers and acoustic vibration, has the potential to save thousands of lives a year.

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Category: Technology

Tags: Landmine Detection, Land Mines, Laser, University of Mississippi

Great North Air Ambulance says a green laser was shone into its helicopter on Monday evening.

Buildings that are normally inaccessible can now be explored virtually using smartphones.

RTAC Large Lasercut MOLLE Backpack with a Pistol Retention System is not just $20.99 after a sale and coupon code at check out. That is 75%+ off...

Washington — Citing a growing trend of people pointing lasers at airplanes, the Federal Aviation Administration is calling for product labels warning consumers that the safety of flight crews and passengers is being put at risk.

Washington — Reports of people pointing lasers at aircraft – a federal crime – have reached an all-time high, according to the Federal Aviation Administration.

Gaithersburg, MD — Many laser protective eyewear products may not be adequately tested – by both manufacturers and end users – for lasers that emit high-power, ultrafast pulses, potentially putting workers at risk, according to a study from the National Institute of Standards and Technology.

Most developers worry about finding buyers for their projects. Todd Glaser found Herbert Wertheim admiring his car in front of SurfSide Diner in Palm Beach.  The conversation started over Glaser’s 1957 Mercedes-Benz 300SL and turned into an off-market deal with the billionaire inventor and Trump friend. Records show Wertheim bought the waterfront house at 305 […]

The post Todd Glaser sells Palm Beach house to billionaire Herbert Wertheim for $38M appeared first on The Real Deal.

When it feels like doctors have closed the door to establishment medicine, another set of doors open. These doors lead to dubious providers, and untested treatments.

Click hereto donate $20 and get ad-free episodes of Patient Zero a week early and bonus content. 

State testing of the Stretta laser range system may begin in April, a source in the Russian military-industrial complex told TASS. "State tests of the Stretta system are to begin on April 1 of this year. They will last for about three months,” the source told the agency. There is no official confirmation to this information, though.

The UFL-2M laser system, which is often called the "Tsar Laser" due to its unique technical specifications and power performance, will be fully operational by approximately 2028-2029, Valentin Kostyukov, Director of the Russian Federal Nuclear Center said in an interview with Russia-24 TV channel. "We have launched the first stage of physical foundations associated with engineering systems," Kostyukov said, admitting that the system will yield results in the next four to five years. The UFL-2M laser system was developed at the Sarov Nuclear Center. The system is needed for modeling and designing new types of nuclear weapons. It is used to study the processes that occur at the moment of explosion. There are only three countries in the world that have such technology: the United States, France, and Russia.

Business technology solutions provider Brother UK has launched a compact range of mono laser printers for businesses, helping resellers to support customers with downsized offices and decentralised workforces.

This paper describes real-time statistical analysis of liquid jet images for SFX experiments at the European XFEL. This analysis forms one part of the automated jet re-alignment system for SFX experiments at the SPB/SFX instrument of European XFEL.

To fully exploit ultra-short X-ray pulse durations routinely available at X-ray free-electron lasers to follow out-of-equilibrium dynamics, inherent arrival time fluctuations of the X-ray pulse with an external perturbing laser pulse need to be measured. In this work, two methods of arrival time measurement were compared to measure the arrival time jitter of hard X-ray pulses. The methods were photoelectron streaking by a THz field and a transient refractive index change of a semiconductor. The methods were validated by shot-to-shot correction of a pump–probe transient reflectivity measurement. An ultimate shot-to-shot full width at half-maximum error between the devices of 19.2 ± 0.1 fs was measured.

Large-bandwidth pulses produced by cutting-edge X-ray free-electron lasers (FELs) are of great importance in research fields like material science and biology. In this paper, a new method to generate high-power ultrashort FEL pulses with tunable spectral bandwidth with spectral coherence using a dielectric-lined waveguide without interfering operation of linacs is proposed. By exploiting the passive and dephasingless wakefield at terahertz frequency excited by the beam, stable energy modulation can be achieved in the electron beam and large-bandwidth high-intensity soft X-ray radiation can be generated. Three-dimensional start-to-end simulations have been carried out and the results show that coherent radiation pulses with duration of a few femtoseconds and bandwidths ranging from 1.01% to 2.16% can be achieved by changing the undulator taper profile.

The Materials Imaging and Dynamics (MID) instrument at the European X-ray Free-Electron Laser Facility (EuXFEL) is equipped with a multipurpose diagnostic end-station (DES) at the end of the instrument. The imager unit in DES is a key tool for aligning the beam to a standard trajectory and for adjusting optical elements such as focusing lenses or the split-and-delay line. Furthermore, the DES features a bent-diamond-crystal spectrometer to disperse the spectrum of the direct beam to a line detector. This enables pulse-resolved characterization of the EuXFEL spectrum to provide X-ray energy calibration, and the spectrometer is particularly useful in commissioning special modes of the accelerator. Together with diamond-based intensity monitors, the imager and spectrometer form the DES unit which also contains a heavy-duty beamstop at the end of the MID instrument. Here, we describe the setup in detail and provide exemplary beam diagnostic results.

This article presents a demonstration of the improved performance of an X-ray free-electron laser (FEL) using the optical klystron mechanism and helical undulator configuration, in comparison with the common planar undulator configuration without optical klystron. The demonstration was carried out at Athos, the soft X-ray beamline of SwissFEL. Athos has variable-polarization undulators, and small magnetic chicanes placed between every two undulators to fully exploit the optical klystron. It was found that, for wavelengths of 1.24 nm and 3.10 nm, the required length to achieve FEL saturation is reduced by about 35% when using both the optical klystron and helical undulators, with each effect accounting for about half of the improvement. Moreover, it is shown that a helical undulator configuration provides a 20% to 50% higher pulse energy than planar undulators. This work represents an important step towards more compact and high-power FELs, rendering this key technology more efficient, affordable and accessible to the scientific community.

Understanding and controlling the structure and function of liquid interfaces is a constant challenge in biology, nanoscience and nanotechnology, with applications ranging from molecular electronics to controlled drug release. X-ray reflectivity and grazing incidence diffraction provide invaluable probes for studying the atomic scale structure at liquid–air interfaces. The new time-resolved laser system at the LISA liquid diffractometer situated at beamline P08 at the PETRA III synchrotron radiation source in Hamburg provides a laser pump with X-ray probe. The femtosecond laser combined with the LISA diffractometer allows unique opportunities to investigate photo-induced structural changes at liquid interfaces on the pico- and nanosecond time scales with pump–probe techniques. A time resolution of 38 ps has been achieved and verified with Bi. First experiments include laser-induced effects on salt solutions and liquid mercury surfaces with static and varied time scales measurements showing the proof of concept for investigations at liquid surfaces.

This study introduces a compact, portable femtosecond fibre laser system designed for synchronization with SPring-8 synchrotron X-ray pulses in a uniform filling mode. Unlike traditional titanium–sapphire mode-locked lasers, which are fixed installations, our system utilizes fibre laser technology to provide a practical alternative for time-resolved spectroscopy, striking a balance between usability, portability and cost-efficiency. Comprehensive evaluations, including pulse characterization, timing jitter and frequency stability tests revealed a centre wavelength of 1600 nm, a pulse energy of 4.5 nJ, a pulse duration of 35 fs with a timing jitter of less than 9 ps, confirming the suitability of the system for time-resolved spectroscopic studies. This development enhances the feasibility of experiments that combine synchrotron X-rays and laser pulses, offering significant scientific contributions by enabling more flexible and diverse research applications.

Laser-induced projectile impact testing (LIPIT) based on synchrotron imaging is proposed and validated. This emerging high-velocity, high-strain microscale dynamic loading technique offers a unique perspective on the strain and energy dissipation behavior of materials subjected to high-speed microscale single-particle impacts. When combined with synchrotron radiation imaging techniques, LIPIT allows for in situ observation of particle infiltration. Two validation experiments were carried out, demonstrating the potential of LIPIT in the roentgenoscopy of the dynamic properties of various materials. With a spatial resolution of 10 µm and a temporal resolution of 33.4 µs, the system was successfully realized at the Beijing Synchrotron Radiation Facility 3W1 beamline. This innovative approach opens up new avenues for studying the dynamic properties of materials in situ.

In a photoinjector electron source, the initial transverse electron bunch properties are determined by the spatial properties of the laser beam on the photocathode. Spatial shaping of the laser is commonly achieved by relay imaging an illuminated circular mask onto the photocathode. However, the Gibbs phenomenon shows that recreating the sharp edge and discontinuity of the cut profile at the mask on the cathode is not possible with an optical relay of finite aperture. Furthermore, the practical injection of the laser into the photoinjector results in the beam passing through small or asymmetrically positioned apertures. This work uses wavefront propagation to show how the transport apertures cause ripple structures to appear in the transverse laser profile even when effectively the full laser power is transmitted. The impact of these structures on the propagated electron bunch has also been studied with electron bunches of high and low charge density. With high charge density, the ripples in the initial charge distribution rapidly wash-out through space charge effects. However, for bunches with low charge density, the ripples can persist through the bunch transport. Although statistical properties of the electron bunch in the cases studied are not greatly affected, there is the potential for the distorted electron bunch to negatively impact machine performance. Therefore, these effects should be considered in the design phase of accelerators using photoinjectors.

A cavity-based X-ray free-electron laser (CBXFEL) is a possible future direction in the development of fully coherent X-ray sources. CBXFELs consist of a low-emittance electron source, a magnet system with several undulators and chicanes, and an X-ray cavity. The X-ray cavity stores and circulates X-ray pulses for repeated FEL interactions with electron pulses until the FEL reaches saturation. CBXFEL cavities require low-loss wavefront-preserving optical components: near-100%-reflectivity X-ray diamond Bragg-reflecting crystals, outcoupling devices such as thin diamond membranes or X-ray gratings, and aberration-free focusing elements. In the framework of the collaborative CBXFEL research and development project of Argonne National Laboratory, SLAC National Accelerator Laboratory and SPring-8, we report here the design, manufacturing and characterization of X-ray optical components for the CBXFEL cavity, which include high-reflectivity diamond crystal mirrors, a diamond drumhead crystal with thin membranes, beryllium refractive lenses and channel-cut Si monochromators. All the designed optical components have been fully characterized at the Advanced Photon Source to demonstrate their suitability for the CBXFEL cavity application.

Ultra-intense, ultra-fast X-ray free-electron lasers (XFELs) enable the imaging of single protein molecules under ambient temperature and pressure. A crucial aspect of structure reconstruction involves determining the relative orientations of each diffraction pattern and recovering the missing phase information. In this paper, we introduce a predicted model-aided algorithm for orientation determination and phase retrieval, which has been tested on various simulated datasets and has shown significant improvements in the success rate, accuracy and efficiency of XFEL data reconstruction.

Ultrafast, high-intensity X-ray free-electron lasers can perform diffraction imaging of single protein molecules. Various algorithms have been developed to determine the orientation of each single-particle diffraction pattern and reconstruct the 3D diffraction intensity. Most of these algorithms rely on the premise that all diffraction patterns originate from identical protein molecules. However, in actual experiments, diffraction patterns from multiple different molecules may be collected simultaneously. Here, we propose a predicted model-aided one-step classification–multireconstruction algorithm that can handle mixed diffraction patterns from various molecules. The algorithm uses predicted structures of different protein molecules as templates to classify diffraction patterns based on correlation coefficients and determines orientations using a correlation maximization method. Tests on simulated data demonstrated high accuracy and efficiency in classification and reconstruction.

With the emergence of ultrafast X-ray sources, interest in following fast processes in small molecules and macromolecules has increased. Most of the current research into ultrafast structural dynamics of macromolecules uses X-ray free-electron lasers. In parallel, small-scale laboratory-based laser-driven ultrafast X-ray sources are emerging. Continuous development of these sources is underway, and as a result many exciting applications are being reported. However, because of their low flux, such sources are not commonly used to study the structural dynamics of macromolecules. This article examines the feasibility of time-resolved powder diffraction of macromolecular microcrystals using a laboratory-scale laser-driven ultrafast X-ray source.

The U.S. is losing ground in a second laser revolution of highly intense, ultrafast lasers that have broad applications in manufacturing, medicine, and national security, says a new report from the National Academies of Sciences, Engineering, and Medicine.

Most basic physics textbooks describe laser light in fairly simple terms: a beam travels directly from one point to another and, unless it strikes a mirror or other reflective surface, will continue traveling along an arrow-straight path, gradually expanding in size due to the wave nature of light. But these basic rules go out the window with high-intensity laser light.

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Researchers have developed a new laser that makes it possible to measure electron transition energies in small atoms and molecules with unprecedented precision. The instrument will help scientists test one of the bedrock theories of modern physics to new limits, and may help resolve an unexplained discrepancy in measurements of the size of the proton.

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In addition to marking on glass and hard plastics, the lasers can deliver high-resolution, permanent codes on flexible film, foil, labels, paperboard, and other packaging.

A true testament to innovation of measuring tools

Hair removal often plays a role in daily grooming—find out why so many people choose to invest in laser hair removal in Vancouver

&quot;Even as a cataract surgeon with more than 30 years of experience, my ability to direct the controlled laser precision to further improve clinical results is amazing,&quot; summarized Dr. Michelson.

The Pinnacle of Tape Innovation

Silicon Valley Aesthetic Dermatology introduces a new blog post detailing the benefits of laser skin rejuvenation. San Mateo and Foster City residents can explore how these treatments help achieve youthful, glowing skin.