Non-contact control of two-photon absorption

Ray Ayan; Raja Waseem; Mir Md. Farooq; Chakrabarti Alok

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Non-contact control of two-photon absorption

机译：双光子吸收的非接触式控制

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In this experimental work, we address the issue of the control of two-photon absorption in a Doppler broadened medium of Rb-85 atoms under the ladder level coupling 5S1/2 -> 5P3/2 -> 5D3/2. Here, suppression and enhancement of two-photon absorption are executed by applying an auxiliary laser beam, which is not physically propagating in the same line of the pump-probe combination. Instead, the auxiliary beam, which is in resonance with the (RbD2)-Rb-85 transition, is at a finite distance from the line of propagation of the pump-probe combination. The resonant auxiliary beam produces an atomic beam in the vapor cell, and when it reaches the pump-probe path, it creates an asymmetry in the population of ground state hyperfine components. This asymmetry is responsible for controlling two-photon absorption. We present here results obtained by us along with a qualitative explanation of the physical principles behind the control mechanism. (C) 2017 Optical Society of America

机译：在该实验工作中，我们解决了在梯子水平耦合5s1 / 2-> 5p3 / 2-> 5d3 / 2的梯形水平耦合5s1 / 2-> 5p3 / 2-> 5d3 / 2中的多普勒扩展介质中对二普勒扩展介质的双光子吸收的控制问题。这里，通过施加辅助激光束来执行双光子吸收的抑制和增强，该辅助激光束在泵探针组合的相同线中没有物理地传播。相反，与（RBD2）-RB-85转变的谐振轴的辅助梁在距泵探针组合的传播线上处于有限距离。谐振辅助束在蒸汽细胞中产生原子束，并且当它到达泵探针路径时，它在地面态高血清组分群中产生不对称性。该不对称性负责控制双光子吸收。我们在这里展示由我们获得的结果以及对控制机制背后的物理原则的定性解释。（c）2017年光学学会

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《Applied optics》 |2017年第30期|共8页
作者
Ray Ayan; Raja Waseem; Mir Md. Farooq; Chakrabarti Alok;
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Variable Energy Cyclotron Ctr Radioact Ion Beam Grp Kolkata 700064 India;

Univ Kashmir Dept Phys Srinagar 190006 Jammu &

Kashmir India;

Univ Kashmir Dept Phys Srinagar 190006 Jammu &

Kashmir India;

Variable Energy Cyclotron Ctr Radioact Ion Beam Grp Kolkata 700064 India;

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Non-contact control of two-photon absorption

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