As a laser physicist, I investigate Physics in and with lasers, and develop new type of lasers. But I have never own a laser myself, not even a laser pointer. Recently, I got one from Techlasers. It is a Infiniti II 95mW, comes together with a dragon case and a goggle. It is slim and light, and take two AAA batteries to power. The beam is very clean and nice.
What I tried to do first is to take laser photos, as those cool people did. But it quickly turns out not an easy task. 
I pointed the laser to my fish tank. Poor golden fishes, I hope they were not frightened. But apparently, they avoid the laser beam well. They didn’t show up in my photos at all. All of my photos were blurred, because I took photo with one hand while another hand holds the laser pointer. I guess to really get good pictures I need kind of tripod for both my camera and the laser.
What do you think is in the following photo?
It is a bath towel. Interestingly, it looks deep, but actually flat.
Later I tried to point to objects like cups and bottles, etc, which are common subjects of laser photography. But the results are not as good as I have hoped. I need to learn photography. 
I haven’t dare to point to sky or play outdoor yet, because I don’t know if there is any local regulation on usage of lasers.
The Dark Knight, originally uploaded by Robert.Haws.
IMG_1473, originally uploaded by Edu Nogueira.
Going Green, originally uploaded by barrettmanor.
Wired had an article titled “Laser-Firing Physicists Take High-Speed Photography to the Attosecond Range“.
Capturing images of fleeting events — a horse’s gallop, a bullet’s impact, an electron’s escape — is easy if you have the right equipment. Faster camera shutters used to be enough, but recently lasers have let physicists break the femto- and attosecond barriers, compressing the temporal resolution of images down to the time it takes light to cross a hydrogen atom.
They mentioned two examples of high speed photography utilizing ultrafast lasers.
4) Element Melting
Shooter R. J. Dwayne Miller, 2007
Shutter speed 300 femtoseconds (300 x 10-15)
By the 1980s, lasers could deliver bursts of light faster than a single molecular vibration. A “pump” pulse triggers a reaction, and a “probe” pulse follows, acting like a strobe. Miller, a University of Toronto chemist, melted aluminum with a laser and used an electron pulse to catch the action at a molecular level. Now he’s working on silicon.
Photo: Christoph T. Hebeisen
5) Electron drift
Shooter
Ferenc Krausz, 2007
Shutter speed 110
attoseconds (110 x 10-18)
The pump-probe technique has been modified to pare pulse times to attoseconds by using photons emitted when electrons get excited out of their orbit and crash back in. That’s short enough to measure the movement of other electrons as they enter an extreme UV wave. The pairs of dotted lines span the time between two electron crossings.
