It is pointed out that the white light laser has its advantages when speckle technique is used.

指出在散光散斑技术中，使用白激光器有很大的优越性。

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Speckles generated by a white light laser are different from those by conventional monochromatic lasers.

本文讨论了白光散斑图与单波长激光所产生的散斑图之差异。

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This white light laser has the turnable characteristic of the output wavelength and intensity of its three basic colours respectively.

这种白色激光具有三基色的波长和强度分别可调的特性。

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A special needle is inserted directly into the tumor and light energy is passed through a laser.

VOA: special.2010.11.23

So this gives you a little bit of an idea of just how many individual photons there are in a laser beam of light. This is a huge number of photons.

这个给你们一点思路关于,一个激光束有多少独立的光子,这是一个巨大的光子数目。

麻省理工公开课 - 化学原理课程节选

So what we end up with for the number of photons in this laser beam of light is 2.1 times 10 to the 17 photons.

这个激光束的数目是,2，1乘以10的17次方。

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Current ultraviolet light laser treatments can kill micro-organisms - but cannot be used in humans as they would also damage cells in the body.

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Although several light and laser therapies have FDA approval as medical devices to treat acne, no true photodynamic acne therapy, combining photosensitizer and light, has been approved.

WSJ: As More Adults Get Acne, New Photodynmic Treatments Use Light

These range from microwave ovens and laser light shows to home security systems and medical imaging devices. (CDER even regulates laser pointers but not online presentation software, if ever a true risk to human health).

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