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2. Electro-optic modulator - Wikipedia

   en.wikipedia.org/wiki/Electro-optic_modulator

   The beam splitter divides the laser light into two paths, one of which has a phase modulator as described above. The beams are then recombined. Changing the electric field on the phase modulating path will then determine whether the two beams interfere constructively or destructively at the output, and thereby control the amplitude or intensity ...

3. Optical tweezers - Wikipedia

   en.wikipedia.org/wiki/Optical_tweezers

   However a number of other beam types have been used to trap particles, including high order laser beams i.e. Hermite-Gaussian beams (TEM xy), Laguerre-Gaussian (LG) beams (TEM pl) and Bessel beams. Optical tweezers based on Laguerre-Gaussian beams have the unique capability of trapping particles that are optically reflective and absorptive.

4. Laser - Wikipedia

   en.wikipedia.org/wiki/Laser

   The beam of a single transverse mode (gaussian beam) laser eventually diverges at an angle that varies inversely with the beam diameter, as required by diffraction theory. Thus, the "pencil beam" directly generated by a common helium–neon laser would spread out to a size of perhaps 500 kilometers when shone on the Moon (from the distance of ...

5. Laser pointer - Wikipedia

   en.wikipedia.org/wiki/Laser_pointer

   Red (635 nm), blueish violet (445 nm), and green (520 nm) laser pointers. A laser pointer or laser pen is a (typically battery-powered) handheld device that uses a laser diode to emit a narrow low-power visible laser beam (i.e. coherent light) to highlight something of interest with a small bright colored spot.

6. List of laser types - Wikipedia

   en.wikipedia.org/wiki/List_of_laser_types

   Projection, life sciences, forensic analysis, spectroscopy, eye surgery, laser light shows. The lasing medium is a semiconductor chip. Frequency doubling or tripling is typically done to produce visible or ultraviolet radiation. Power levels of several watts are possible. Beam quality can be extremely high- often rivaling that of an ion laser.

7. Dimmed lights, no in-store radio: Morning shopping at Walmart ...

   www.aol.com/finance/dimmed-lights-no-store-radio...

   Walmart is extending a program that is aimed at making its stores a less chaotic environment, which should be a welcome change for people with sensory disabilities, including autism and ADHD.. The ...

8. Phased-array optics - Wikipedia

   en.wikipedia.org/wiki/Phased-array_optics

   Phased-array beam steering is used for optical switching and multiplexing in optoelectronic devices and for aiming laser beams on a macroscopic scale. Complicated patterns of phase variation can be used to produce diffractive optical elements , such as dynamic virtual lenses, for beam focusing or splitting in addition to aiming.

9. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!