Content for Laser

Laser

A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The term "laser" originated as an acronym for "light amplification by stimulated emission of radiation". The first laser was built in 1960 by Theodore H. Maiman at Hughes Research Laboratories, based on theoretical work by Charles Hard Townes and Arthur Leonard Schawlow. A laser differs from other sources of light in that it emits light which is coherent. Spatial coherence allows a laser to be focused to a tight spot, enabling applications such as laser cutting and lithography. Spatial coherence also allows a laser beam to stay narrow over great distances (collimation), enabling applications such as laser pointers and lidar. Lasers can also have high temporal coherence, which allows them to emit light with a very narrow spectrum, i.e., they can emit a single color of light. Alternatively, temporal coherence can be used to produce pulses of light with a broad spectrum but durations as short as a femtosecond ("ultrashort pulses").

Laser device for neutralizing - mosquitoes

“Low-cost device for control mosquitoes, weeds, pest etc. This is an innovative and effective method for remote monitoring of mosquitoes and their neutralization. Was explained in detail how was leveraged modern advances in neural networks to use a powerful laser …

Laser Engraver Made With Repurposed CD/DVD Computer Drives

“Over half a year ago now, while trying to think up ideas for a project, I found a tutorial for a pen plotter that used the stepper motor mechanisms contained within DVD and or CD computer drives to create a …

MIDI Laser Harp with Time of Flight Distance Sensors

“A laser harp is an electronic instrument that lets you “pluck” laser beams like a harp to play notes. In this guide, you’ll learn how to build your own version of a laser harp using a Feather M4 Express …

Arduino Chronograf

“This project is for a homemade chronograph and this device is used to measure muzzle speed which basically is the speed of bullets. If you remember, a few weeks ago I’ve made a coil gun project, which by the …

Make Tripwire Security Alarm Using Arduino

“Hey friends welcome back today in this articlei will show you how to Make Tripwire security Alarm using Arduino. in this tutorial You will learn how to use a photo resistor. A tripwire is a device triggered by physical movements …

Laser Anemometer

“This instructable explains how to make an anemometer from an Arduino Uno R3, two VL6180X laser distance modules, and a section of plastic drain pipe or similar. Processing3 is used to display the wind speed and wind direction. The wind …

DiY Mini Laser Engraver

“Whats up, In this instructable, I am making an Awesome mini laser engraver from old DVD writers. It’s very interesting project for any electronics hobbyist & Engineers. You can use this laser engraver machine to make any kind of design …

A Bolt IoT-based Automobile Anti-theft System

“This project is developed to provide a user with a solution to track their vehicle in real-time if someone tries to steal or break into it. Cars are slowly becoming a necessity now owing to the pandemic situation prevalent all …

Laser Tachometer

“A small hand-held tachometer that uses a laser to show how fast an object is rotating in revolutions per minute (rpm). This Laser Tachometer is a rebuild of Elite Worm’s Build a Laser Tachometer. Both the hardware and software …

Laser Engraving With DIY Arduino Scara Robot

“In this tutorial I will show you how I converted my DIY 3D Printed SCARA robot arm that I built in one of my previous videos to work as a laser engraver. You can watch the video following video or …