Modulation spectroscopy of coherent population trapping resonance and light shifts

被引：15

作者：

Chuchelov, D. S. ^{[1
,2
]}

Vassiliev, V. V. ^{[1
,2
]}

Vaskovskaya, M., I ^{[1
,2
]}

Velichansky, V. L. ^{[1
,2
,3
]}

Tsygankov, E. A. ^{[1
,2
]}

Zibrov, S. A. ^{[1
,2
]}

Petropavlovsky, S., V ^{[4
]}

Yakovlev, V. P. ^{[3
]}

机构：

[1] OOO Atomiks, Moscow 125315, Russia

[2] Russian Acad Sci, PN Lebedev Phys Inst, Moscow 119991, Russia

[3] Natl Res Nucl Univ, MEPhI Moscow Engn Phys Inst, Moscow 115409, Russia

[4] Natl Res Univ, Higher Sch Econ, Moscow 101000, Russia

来源：

PHYSICA SCRIPTA | 2018年 / 93卷 / 11期

关键词：

coherent population trapping; light shift; vertical cavity surface-emitting laser; in-phase and quadrature signals; density matrix equations; ATOMIC CLOCKS; FREQUENCY STANDARD; LASER; TRANSITIONS;

D O I：

10.1088/1402-4896/aae1a0

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We develop a theory of modulation response of the coherent population trapping (CPT) resonance. We consider the simplest three-level atom, but take into account the polychromatic spectrum of the pumping and probing light produced by pure FM modulation of single frequency field. The analysis based on the density matrix equations rigorously includes the most important for applications range of modulation parameters where modulation frequency and deviation are comparable with or greater than the CPT linewidth, so the response of the atomic medium is not adiabatic. Some theoretical results, in particular the possibility of using a quadrature response to modulation to suppress light shift, are compared with the experiment carried out with a diode laser (VCSEL) and Rb-87 atoms.

引用

页数：16

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