The World's Shortest Laser Pulse

The application of 635nm red laser module has just made 635nm red laser line generator obtain the purest and the brightest red laser beam and red reference line targeting in all kinds of precise machinery processing works. Owing to its easy equipment of high quality glass coated lens, not the same as formally used plastic coated lens with great worrying about laser light decay or blur, this 635nm red laser module is always keeping high linear quality red laser line targeting. The genuine laser line alignment with this red laser device just gets no appearance of laser light decay or blur, but just bringing users no mistake and high speed red line targeting after correct choices of both output power and optic lens degree.

Owing to the use of 635nm red laser diode, no matter what kind of targeting surface, this red laser line generator is able to get even better laser beam quality from its TEM00 laser beam mode. The desired 635nm red laser light is keeping at least 5 times brighter light emission than 650nm red laser with same output power. In addition, this 635nm red laser module is only getting a bit higher price, thus it is just getting super wide applications in majority of industrial machinery processing work fields.

Not the same as other formally used laser diode made laser line alignment tool, this 635nm separate crystal lens red laser line generator is available with TEM00 beam mode, generating even better quality red laser line with super high linear quality and strong laser light transmittance. It is just a quite important issue for this 635nm red laser module to get a non laser light decay appearance, thus making sure of clear and accurate enough line alignment under long distance and long term continuous line alignment work.

Recently, ETH researchers successfully X ray laser pulse duration time is shortened to 43 seconds. In the time resolution of attosecond (10-18 seconds), they observed for the first time the motion of electrons in slow chemical reactions.

In general, scientists can study all the motions of atoms and molecules in the basic time range of atoms and molecules. The range of molecular rotation is picosecond (10-12 second), and their vibrational range is femtosecond (10-15 second), and the range of electron motion is attosecond (10-18 second).

In this study, researchers have obtained a soft X ray green laser pulse with very wide spectral bandwidth from an infrared laser. Therefore, by stimulating the inner shell electrons, we can directly observe the various elements including phosphorus and sulfur. These two elements are present in biomolecules and can now be observed at an unprecedented time resolution.

It is understood that the attosecond laser spectrometer is not only suitable for observation, but also can directly control the chemical reaction. The use of laser pulses can change the reaction process even by breaking the chemical bonds by stopping the charge transfer at a certain position in the molecule. It is impossible to say that targeted interventions in this chemical reaction are not possible, because it is not possible to reach the time scale of the electron motion in the molecule.