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Why silicon-germanium semiconductors are not used to produce lasers?
Basically Si and Ge are optically inactive materials because of it's indiect band gap.That's why people are not using this for producing lasers. Generally we are using Optically active materials are used for Laser Production. Ex:Ga-As
The gallium arsenide is prepared for laser action but silicon and germanium are not. explain why?
I think because GaAs has a direct band gap transition but Si and Ge has indirect band gap transition. Both silicon and germanium are opaque and thus cannot be used to make LASERs.
What is the difference between silicon and germanium semiconductors?
integrated circuits and components made in GaAs are much faster than silicon because its low field electron mobility is larger than silicon. GaAs has ability to emit light used in leds,lasers and microwave emitter used in cellular phones
What has the author A A Borshch written?
A. A. Borshch has written: 'Refractive nonlinearity of wide-band semiconductors and applications' -- subject(s): Optical properties, Semiconductor lasers, Semiconductors
Gems have -----------applications in abrasives lasers and electronics?
Gems have various applications in abrasives due to their hardness, in lasers for their ability to amplify light, and in electronics for their use as semiconductors or insulators.
Do lasers emit gamma rays?
No. Lasers produce coherent light.
What has the author Beate Stephan Falconer written?
Beate Stephan Falconer has written: 'Grating-tuned external cavity diode lasers' -- subject(s): Design and construction, Semiconductor lasers, Tunable lasers, Silicon oxide films
What is the difference between lasers and tunable lasers?
All tunable LASERs are LASERS, however not all LASERS are tunable. In a tunable laser the lasing medium, which is typically a gas, dye or crystal, can be altered to produce slightly different frequencies, thus allowing the laser to be 'tuned' or frequency changed where most LASERS produce a very narrow band of radiation frequencies.
What is the difference between cold and hot lasers?
Cold lasers are safer and deal less pain than hot lasers. Cold lasers are usually used for repairing skin damage and treating pain and inflammation. Hot lasers are simply used for burning things.
What are quantum dots used for?
Quantum dots are semiconductors that are used for medical imaging, quantum computing, transistors, solar cells, LEDs, and diode lasers. It was discovered by Alexei Ekimov in the early 1980s.
What type of lasers does Intralase produce?
Intralase produces Lasers that can be used for eye surgery. The eye surgery that can be performed is called LASIK and this stands for Laser-Assisted In Situ Keratomileusis.
What light is produced by lasers?
Lasers produce coherent light, which means the waves are aligned and have a consistent phase. This produces a concentrated, intense beam of light with very little divergence.
