Mercury Laser Altimeter (MLA) of the MESSENGER spacecraft
The 2.7 meter Harlan J. Smith Telescope of the McDonal Observatory (USA) is used to point a laser beam to a mirror stationed on the surface of the moon.
Laser trails by a 532nm green laser pointer and a 405nm violet laser pointer.
Adjustable-focus laser pens Green laser 532nm 50mW (left) Violet laser 405nm 150mW (right)
Laser pointer pens Red (650nm) 100mW Green (532nm) 50mW Violet (405nm) 150mW
laser_optique.jpeg
Multiple lasers reflecting from a mirror.
Ein Laserstrahl 240x vergr????ert, auf einer Oberfl?�che, auf die nicht scharfgestellt wurde (m??sste v?�llig unscharf sein) !unebenheiten im Strahl trotzdem Scharf! (im gegensatz zu
Laser Diffraction - CILAS
Laser pointer pens Red (650nm) 100mW Green (532nm) 50mW Violet (405nm) 150mW
Powerful green laser of the University of Leiden
Description: Fundus photo showing scatter laser surgery for diabetic retinopathy.
CW single-frequency ring Dye laser
Concentric Laser Diffraction - CILAS
diffraction_of_laser_beam_on_grating.jpg
Jean Michel Jarre playing a laser harp during the
Jean Michel Jarre playing laser harp in Spodek, Katowice, Poland
View on the Coherent ODIN titan-sapphire ultrashort pulse amplifier in the Physical institute, CAS, Prague. The intense green pump beam (faintly visible in the air) comes from left, supplied by Nd:YAG laser (Pavg = 10 W) and passes twice through the Ti:sapphire crystal, which is placed in a Peltier- and water-cooled holder. The seed pulse is created in a mode-locked laser Mira, becomes chirped through pulse stretcher (optics hidden behind the amplifier) and pases 8 times the cycle consisting of the Ti:sapphire crystal, two little mirrors on the left and right, a big mirror in front of the crystal and 8-holes spatial filter right of the mirror. The averaged output power is 1 W in approx. 70 fs pulses @ 1 kHz. The wavelenght of Ti:sapphire laser covers a broad range near 800 nm.
coupe d'un laser rubis
The Boussard Interstellar Ramjet engine concept uses interstellar hydrogen scooped up from its environment as the spacecraft passes by to provide propellant mass. The hydrogen is then ionized and then collected by an electromagentic field. In this image, an onboard laser is used to heat the plasma, and the laser or electron beam is used to trigger fusion pulses thereby creating propulsion.



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