Lasers can produce light with wavelengths spanning the visible spectrum and beyond, extending from the infrared well into the X-ray band. Those lasers that produce frequencies outside the visible spectrum are hazardous to health since they can cause irreparable damage to body tissues, including those...
Light is made up of photons vibrating at a wide range of wavelengths, and the wavelengths that match the absorbable range of a solar semiconductor (known as a bandgap) can be captured by that solar cell. A strategy already helping to improve PV cell efficiency is layering multiple ...
Plastics, though cheap, certainly have their drawbacks: their optical quality is generally not as good as glass, they scratch very easily, they change their optical properties more readily than glass as the temperature changes, they don't transmit all light wavelengths as well as glass, and they...
The light comes into the microscope and hits a dichroic mirror -- a mirror that reflects one range of wavelengths and allows another range to pass through. The dichroic mirror reflects the ultraviolet light up to the specimen. The ultraviolet light excites fluorescence within molecules in the ...
The wavelengths of the light we can see range from 400 to 700 billionths of a meter (nanometers). The amount of energy in a light wave is proportionally related to its wavelength: shorter wavelengths have higher energy. Of visible light, violet has the most energy and red the least. ...
The absorbed wavelengths help to identify the substance as ethanol, and the amount of IR absorption tells you how much ethanol is there. Diagram of the Intoxilyzer In the Intoxilyzer: A lamp generates a broadband (multiple-wavelength) IR beam. The broadband IR beam passes through the ...
Now for AM, the wavelengths are about 100 times greater, so how come you don't need an antenna that's 300m (0.2 miles) long to pick them up? Well you do need a powerful antenna, you just don't know it's there! The AM antenna on the inside of a transistor radio works in a ...
It contains lots of different wavelengths traveling in lots of different directions. Even waves of the same wavelength can be in a different phase, or alignment between the peaks and troughs. Laser light, on the other hand, is orderly. Lasers produce monochromatic light — it has one ...
It contains lots of different wavelengths traveling in lots of different directions. Even waves of the same wavelength can be in a different phase, or alignment between the peaks and troughs. Laser light, on the other hand, is orderly. Lasers produce monochromatic light — it has one ...
· Energy efficiency –with LED grow lights it is possible to optimize the spectrum by concentrating energy on wavelengths (colors) that are most beneficial for each application and plant. In addition, reduced heat production allows putting LED fixtures closer to plants ensuring less light is lost...