Direct observation of Friedel oscillations around incorporated sie, dopants in GaAs by low-temperature scanning tunneling microscopy

Contains fulltext : 28500.pdf (publisher's version ) (Open Access

Alternate gradient focusing and deceleration of a molecular beam

Contains fulltext : 98922.pdf (publisher's version ) (Open Access

Cavity ring down spectroscopy on solid c-60

Contains fulltext : 98965.pdf (publisher's version ) (Open Access

Gas-phase infrared photodissociation spectroscopy of cationic polyaromatic hydrocarbons

Contains fulltext : 98956.pdf (publisher's version ) (Open Access

Longitudinal focusing and cooling of a molecular beam

Contains fulltext : 98934.pdf (publisher's version ) (Open Access

Dynamics of neutral molecules stored in a ring

Contains fulltext : 60361.pdf (publisher's version ) (Open Access)A decelerated beam of neutral ammonia molecules is injected into an electrostatic storage ring. Electrostatic lenses are used to map the emittance of the decelerator onto the acceptance of the ring. The tangential velocity spread of the package of molecules in the ring is set to less than 1 m/s. The package of molecules can be observed for more than 50 distinct round trips, corresponding to 40 m in circular orbit and almost 0.5 s storage time, sufficiently long for a first investigation of its transversal motion in the ring

A forty-segment molecular synchrotron

Contains fulltext : 123183.pdf (publisher's version ) (Open Access

Shedding new light on thermionic electron emission of fullerenes

Contains fulltext : 98985.pdf (publisher's version ) (Open Access

Photodissociation of vibrationally excited SH and SD radicals at 288 and 291 nm: The S(1D2) channel

Contains fulltext : 36317.pdf (publisher's version ) (Open Access)Ultraviolet photodissociation of SH (X (2)Pi, upsilon(')=2-7) and SD (X (2)Pi, upsilon(')=3-7) has been studied at 288 and 291 nm, using the velocity map imaging technique to probe the angular and speed distributions of the S(D-1(2)) products. Photodissociation cross sections for the A (2)Sigma(+)<- X (2)Pi(upsilon(')) and (2)Delta <- X (2)Pi(upsilon(')) transitions have been obtained by ab initio calculations at the CASSCF-MRSDCI/aug-cc-pV5Z level of theory. Both the experimental and theoretical results show that SH/SD photodissociation from X (2)Pi (upsilon(')<= 7) proceeds via the repulsive wall of the A (2)Sigma(+) state. The angular distributions of S(D-1(2)) indicate that the dissociation approaches the sudden recoil limit of the A (2)Sigma(+) state, yielding strongly polarized fragments. The S(D-1(2)) atoms are predominantly produced with total electronic angular momentum perpendicular to the recoil axis. (c) 2007 American Institute of Physics