Title :
Focusing an atomic beam with nanometer resolution using a laser as an atom-optical lens
Author :
Natarajan, Vivek ; Behringer, R.E. ; Timp, Gregory
Author_Institution :
AT&T Bell Labs., Murray Hill, NJ, USA
Abstract :
Summary form only given. Recently it has been demonstrated that neutral atomic beams can be focused by use of a laser as an atom-optical lens. Standing wave atom-optical (SW) lenses have been of particular interest because of the potential for both high-resolution and high-throughput lithography. In this paper, using sub-Doppler optical cooling schemes in conjunction with mechanical collimation, and a SW with /spl sigma/=56 /spl mu/m, we have been able to achieve <20 nm resolution with contrast of at least 10:1, focusing a thermal atomic sodium beam using 589-nm light corresponding to the D/sub 2/ transition.
Keywords :
atomic beams; laser beam effects; lenses; particle beam focusing; radiation pressure; sodium; 20 nm; 589 nm; D/sub 2/ transition; Na; contrast; focusing; laser; mechanical collimation; nanometer resolution; standing wave atom-optical lens; sub-Doppler optical cooling; thermal neutral atomic sodium beam; Atom lasers; Atom optics; Atomic beams; Atomic measurements; Extraterrestrial measurements; Fiber lasers; Glass; Lenses; Optical fibers; Wavelength measurement;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 1996. QELS '96., Summaries of Papers Presented at the
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
1-55752-444-0
