| Long wavelength (12) |  |
| Particular wavelength (9) | |
| Short wavelength (10) | |
| Single wavelength (5) | |
| Wavelength (523) | |
| Long wavelength (12) | |
| Particular wavelength (9) | |
| Short wavelength (10) | |
| Single wavelength (5) | |
| Wavelength (523) | |
The group from CEA-Leti and III-V lab also demonstrated single wavelength tuneable lasers with a 21 ma threshold at 20o Celsius, a 45 nm tuning range and a side mode suppression ratio larger than 40 db over the tuning range.
Using photoacoustic microscopy (PAM), a single wavelength, pulse-width-based technique developed in his lab, Wang,
"Using this new single wavelength, pulse-width-based method, PAM is speed capable of high imaging of the oxygen saturation of hemoglobin,
and for now it works only with a single wavelength of light but it s the first time that anyone has been able to generate electrical current using these high-energy electrons.
lasers have been able to emit every single wavelength of light except for white. The problem is that typical lasers only beam one specific wavelength of light at a time.
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