Search Results for: beam
Laser Microphones: The Soviet Spy Technology that’s Making a Comeback
What is a Laser Microphone? Laser microphones are any device that uses a laser or optical beam to recover audio information, largely these devices use mechanical disturbance of the laser’s beam ...
Freeform Optics Design and Fabrication
Most are used to seeing lenses with very set radii of curvature. Typical lenses have surfaces that are plano, convex, concave, or any combination of those. Even in the cases of aspherical lenses or ...
Telescopes from Invention to Today
Telescopes serve as a gateway to discovery. They capture the imagination of children and professionals alike. The development of telescopes has led to countless discoveries, both terrestrial and ...
Night Vision for Hunting
Hunting. What was a pursuit once necessary for survival is now a sporting pastime for those in the developed world. Many of the animals are nocturnal which makes the night time a preferred time for ...
Solar Cells & Batteries Used in Wearable Devices
Wearable devices have been increasingly popular in the past few years. Everything from smartwatches as a fashionable, convenient extension of one’s smartphone to thin bands for fitness tracking, wearable ...
Photonics Technologies in Aerospace and Defense Applications
One area where photonics is integrated prolifically is the aerospace and defense world. Giants of the aerospace and defense industry rely heavily on implementing photonics technologies to successfully ...
Metamaterial Applications Revisited: Optical and Acoustic
We have previously discussed metamaterials in an overview regarding their uses in lens design and optical cloaking, but the metamaterial realm stretches much further than that. Today, let us dive into ...
Miniature Lens Types and Production for Optical Devices
The convenience and size of modern electronics make it easy to overlook the amount of engineering crammed into each device. For instance, most individuals do not consider what went into loading multiple ...
X-Ray Diffraction: Getting to Know Crystal Structures (Part Ⅰ)
When we study materials, utilizing X-ray to understand crystalline structure is essential. Microscopic structure and atomic composition determine critical properties of matter such as the melting point, ...
Electron Spectroscopy for Surfaces Analysis
The electron can provide lots of information about a material’s surface in electron spectroscopy studies. Traditionally, electron spectroscopy uses the characteristics of electrons emitted from ...