DIY Pen/Laser Engraver ESP32 Controller
https://www.electronics-lab.com/diy-pen-laser-engraver-esp32-controller/
Buildlog.Net Blog published a new project. It’s an ESP32 Controller board used to control X/Y and Z axis of Pen or Laser engraving machines. I have done several pen and laser machines lately, so I decided to create a custom PCB for Grbl_ESP32 for these types of machines. This is a small (70mm x 60mm) […]
Femtosecond Electronics With Plasmonic Hot Electron Nano-emitters
https://www.electronics-lab.com/femtosecond-electronics-with-plasmonic-hot-electron-nano-emitters/
A team led by the Technical University of Munich (TUM) physicists Alexander Holleitner and Reinhard Kienberger has found success for the first time in generating ultrashort electric pulses on a chip. They made this possible by using asymmetric metal antennas only a few nanometers in dimension, then running the signals a few millimeters above the […]
Laser Beam Wireless Smartphone Chargers: The Next Big Thing
https://www.electronics-lab.com/laser-beam-wireless-smartphone-chargers-next-big-thing/
Cellphone chargers have been in existence for years and have grown from one stage to another. It started with the mobile phone traditional charger which had a USB interface, a DC converter, and a charging plug and now has expanded to a close-range inductive wireless charging. The commonly used inductive wireless charging is nice but […]
Researchers Developed a Very Powerful Mini Synchrotron That Can Fit On A Tabletop
https://www.electronics-lab.com/researchers-develop-powerful-mini-synchrotron-can-fit-tabletop/
A synchrotron is a particular type of cyclic particle accelerator which is used to accelerate quantum level charged particles at a very high velocity, traveling around a fixed closed-loop path. It is one of the first accelerator concepts to enable the construction of large-scale facilities because they are very efficient in beam focusing, bending, and […]
Physicists Of University of Rochester Have Created Polariton – A Particle With Negative Mass
https://www.electronics-lab.com/71344-2/
A group of researchers led by Nick Vamivakas from the University of Rochester has successfully produced particles which have negative mass in an atomically thin semiconductor material. According to the researchers, they have created a device that can generate LASER light using a significantly small amount of energy. All made possible with the help of this so-called negative mass particles. Quantum physicist Nick […]
290Hz Narrowband Laser On Chip For Numeros Photonic Applications
https://www.electronics-lab.com/290hz-narrowband-laser-chip/
Researchers from the MESA+ research institute at University of Twente have collaborated together with the provider company of the customized microsystem solutions “LioniX International” to achieve the lowest bandwidth tunable diode laser on a chip. The newly-developed laser operates in the IR region at 1550 nm with an 81 nm tuning range, which means that users […]
On-Chip Microwave Laser
https://www.electronics-lab.com/chip-microwave-laser/
Lasers are everywhere these days: at the checkout in the supermarket, in the CD player in the lounge – and quantum researchers need them to test qubits in the (future) quantum computers. For most applications, today’s large, inefficient lasers are a perfectly adequate solution, but quantum systems operate on a very small scale and at […]
Make Your Own Laser Scanning Microscope
https://www.electronics-lab.com/make-laser-scanning-microscope/
A laser scanning microscope (LSM) is an optical imaging technique for increasing optical resolution and contrast of micrographs. It permits a wide range of qualitative and quantitative measurements on difficult samples, including topography mapping, extended depth of focus, and 3D visualization. A laser microscope works by shining a beam of light on a subject in […]
LASER TRIGGER FOR CHRONOGRAPH
https://www.electronics-lab.com/laser-trigger-chronograph/
“pinko” build a laser trigger for chronograph using PIC18F2550 and LM393 comparators. He writes: I finished this laser wall trigger for my HIGH RESOLUTION AND ACCURACY CHRONOGRAPH. The purpose of this device is to generate the trigger start and stop impulses for my chronograph as soon as an object disrupts any of the laser beams. […]
Constant Current Laser Diode Driver Circuit Using OPA2350 OpAmp
https://www.electronics-lab.com/constant-current-laser-diode-driver-circuit-using-opa2350-opamp/
The voltage-controlled current source circuit can be used to drive a constant current into a signal or pump laser diode. This simple linear driver provides a cleaner drive current into a laser diode than switching PWM drivers. The basic circuit is that of a Howland current pump with a current booster (Q1) on the output […]