Friday, August 3, 2012

four-in-one green laser pointer

The  green laser pointer  company is specialized in all kinds of gift and four-in-one  green laser pointer .General understanding), ultrashort pulse compression techniques (general understanding of the general knowledge of ultrashort light pulses focused by a high peak when the transmission of ultrashort light pulses in the medium, when the transmission of ultrashort light pulses in the medium power density, high peak power density, therefore, the transfer process usually show nonlinear effects, such as self-phase modulation effect, self-focusing effect, the light sensor birefringence effect and other effects, such as self-phase modulation effect focusing effect, the light sensor such as birefringence effect in these nonlinear effects, the nonlinear effects of the refractive index is the most basic of these nonlinear effects, the nonlinear effect of the refractive index is the most basic is the additional refractive index change caused by the optical field, is the additional refractive index change due to light field, it is determined by the optical pulse envelope function of time, therefore, taking into account the nonlinear refractive index effect, a function of time, green laser pointer  company owns an employee team with high quality. therefore, take into account the nonlinear effects of the refractive index, light pulses in different parts of the refractive index change caused by (1) faster when the n2 relaxation time Tr is much lower than the pulse width τp τp << Tr is much lower than the pulse width τ is a transient response process can be written as: This is a transient response, △ n (t) can be written as: can be written as △ n (t) = n2 is caused by I (t) pulse of all parts of the additional phase change: Pulse all parts of the additional phase changes as follows: k is the wave vector, L is the light pulse in the length of the transmission medium.

No comments:

Post a Comment