Although the optical absorbance of skin pigment and hemoglobin is not as high as that for hemozoin (23,24) and is not sufficient to generate vapor nanobubbles under the laser pulse duration
and fluence used (29), the bulk transient heat released by hemoglobin and melanin generates a background acoustic trace, which limits the signal-to-noise ratio for the H-VNB method and thus increases the detection threshold for malaria infection.
24, 25) Such experiments are characterized in terms of the self-modulated wakefield regime, (26) where laser power should be higher than the critical power for relativistic self-focusing and the laser pulse duration
is longer than the plasma period.
On the other hand, the ability to control precisely the laser pulse duration
, repetition rate, and energy content are engineering tasks which need more development effort before the laser can be employed on a production basis for this type of application.
3 mm, laser pulse duration
of 6 ms, treatment time of 3 s)
When users need to measure against a shiny surface, for example, they ideally require a sensor that is able to automatically adjust the laser pulse duration
(or laser on time) of the sensor to give them the optimum exposure time on the CCD for that particular surface.
As part of its Technology Partnership with UK Sport, scientists from BAE Systems adapted laser systems originally used to protect aircraft from hostile attack in a series of bespoke laboratory tests and examined how the laser pistols performed, including tests on power output, beam profile and laser pulse duration
zz] have wave nature with wave front has its maximum at the average of the laser pulse duration
The time delayed average windowed (5ps), electro-optic sampled data are a cross-correlation between the electrical signal on the line and the laser pulse duration
Vbeam features ultra-long laser pulse duration
, up to 40 times longer than current technologies, to produce a more gentle heating effect of the targeted blood vessels.