This kind of green laser pointer adopts the special material

Single-atom laser imprisoned atomic energy level diagram in Figure 7 standing wave field dressed by (2.8) shows that the optical dipole potential is a function of the relative position of the standing wave field in the cavity of the atom can be imprisoned in the antinodes (red loss harmonic time) or nodal (blue detuning) of, and increase the pump intensity can increase the potential well depth. Was space in the cavity standing wave field formed by a one-dimensional potential well, the potential well dish arranged along the cavity axial restraint, while the constraint in the radial direction, so easy to cause cold atoms to leak along the radial direction . In order to prevent the atoms from the horizontal escape in the horizontal auxiliary plus 2 to reverse the spread of σ +? Σ? Optical viscose beam, two-dimensional the viscose beam will be atomic transverse cooling and compression. Cavity atomic probe beam, measuring the output light intensity can achieve real-time observation and measurement of the cavity atomic number.green laser pointer is of the professional specification
In their model, the atomic length of life uniquely from the class of Sisyphus mechanism. - 14 - single-atom laser, East China University of Technology thesis imprisoned Figure 9 atom life analysis of the atomic capture time 17s (upper curve), without the pump light, the atoms only 2.7s of life (lower curve). 2.3.2 blue-detuned hollow beam imprisoned in 2007, they also trapped cold atoms in the dark and observed experiments [10], by detecting optical power measurement, the observed 30ms when the single-atom-specific detuning confinement time. The device as shown in Figure 11. The same cavity strong coupling of single-atom confinement in three-dimensional blue-detuned trap, the trap center near gone two light significantly reduced the height of the atomic energy levels of the well does not depend on frequency shift of the original. Therefore, the blue-detuned trap in the C-the QED many experimental advantages. The battery of  green laser pointer  includes the positive polarity.
Son of the detuning, it can be a lot of captivity. Trap atoms in a very good potential well barrier, the atoms of the external barrier. Easy-made funnel to load atoms into the trap central atoms in blue detuned light exclusion, so the kinetic energy does not increase, however, the funnel to collect the weak coupling of the atoms refused entry well. When the central trap to detect the strongly coupled atom funnel automatically shut down. Energy obtained from the guidance, and little change in cooling of trapped atoms is no longer so strict. (5) atomic detuning in the loading process remains the same cavity to enlarge the parameters of heating can be avoided. The following figure concise, well look blue laser composition.green laser pointer  has the water-proof characteristic and feature