Electromagnetically induced transparency in rubidium

Olson, Abraham; Mayer, Shannon K.

doi:10.1119/1.3028309

Cited by 29 publications

(18 citation statements)

References 37 publications

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“…The ever-growing presence in the advanced undergraduate laboratory of the frequency-tunable external-cavity diode laser (ECDL), operating in single transverse and longitudinal mode with a linewidth of 1 MHz, is well documented. [1][2][3] These lasers have enabled the introduction of interesting topics in atomic and optical physics such as laser cooling and atom trapping, [4][5][6][7][8] electromagnetically induced transparency, 9,10 and novel techniques in Doppler-free and sub-natural linewidth spectroscopy. [11][12][13][14][15][16] It is well known that while ECDLs offer important advantages such as low cost, narrow linewidth, and wide tunability, they are limited in output power; after manipulations such as beamshaping, Faraday optical isolation, or fiber-coupling, one is typically left with less than 10 mW (Refs.…”

Section: Introductionmentioning

confidence: 99%

Design and construction of cost-effective tapered amplifier systems for laser cooling and trapping experiments

Kangara

Hachtel

Gillette

et al. 2014

American Journal of Physics

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This department welcomes brief communications reporting new demonstrations, laboratory equipment, techniques, or materials of interest to teachers of physics. Notes on new applications of older apparatus, measurements supplementing data supplied by manufacturers, information which, while not new, is not generally known, procurement information, and news about apparatus under development may be suitable for publication in this section. Neither the American Journal of Physics nor the Editors assume responsibility for the correctness of the information presented. Manuscripts should be submitted using the web-based system that can be accessed via the American Journal of Physics home page, http://ajp.dickinson.edu and will be forwarded to the ADN editor for consideration.

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Section: Introductionmentioning

confidence: 99%

Design and construction of cost-effective tapered amplifier systems for laser cooling and trapping experiments

Kangara

Hachtel

Gillette

et al. 2014

American Journal of Physics

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“…Recent undergraduate-level experiments in rubidium include laser spectroscopy, 16 the temperature dependence of Doppler-broadening, 17 Faraday rotation, 18 demonstration of the Kramers-Kronig relation, 19 two-photon spectroscopy, 20 coherent population trapping, 21 and EIT. 22 Nonlinear optics is an intriguing and important topic in modern optics. Nonetheless, undergraduate physics laboratory experiments in nonlinear optical processes are somewhat rare, due in part to the relatively high laser powers and/ or expensive crystals often required to observe many nonlinear effects.…”

Section: Introductionmentioning

confidence: 99%

Collimated blue light generation in rubidium vapor

Kienlen

Holte

Dassonville

et al. 2013

American Journal of Physics

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We describe an experiment for generating and characterizing a beam of collimated blue light (CBL) in a rubidium vapor. Two low-power, grating-feedback diode lasers, operating at 780.2 nm (5S1/2→5P3/2) and 776.0 nm (5P3/2→5D5/2), respectively, provide step-wise excitation to the 5D excited state in rubidium. Under the right experimental conditions, cascade decay through the 6P excited state will yield a collimated blue (420-nm) beam of light with high temporal and spatial coherence. We investigate the production of a blue beam under a variety of experimental conditions and characterize the spatial coherence and spectral characteristics. This experiment provides advanced undergraduate students with a unique opportunity to investigate nonlinear optical phenomena in the laboratory and uses equipment that is commonly available in laboratories equipped to investigate diode-laser-based absorption spectroscopy in rubidium.

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“…The designated states can be chosen as follows: |1 = 5S 1/2 , |2 = 5P 3/2 , |3 = 5D 5/2 and |4 = 8S 1/2 . The respective transition wavelengths and decay rates are [53][54][55] λ 12 = 780 nm and γ 12 = 2π×6 MHz (for |1 ↔ |2 transition), λ 23 = 776 nm and γ 23 = 2π×0.97 MHz (for |2 ↔ |3 transition), λ 24 = 616 nm and γ 24 = 2π×1.1 MHz (for |2 ↔ |4 transition). For SA effect,σ + -polarized field is interacting with |1 ↔ |2 and |2 ↔ |3 transitions while the polarization of the control field isσ − on |2 ↔ |4 transition.…”

Section: Control Of Rsa and Sa: Effect Of Decay Ratesmentioning

confidence: 99%

Optical switching and bistability in four-level atomic systems

Kumar

Dasgupta

2016

Phys. Rev. A

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We explore the coherent control of nonlinear absorption of intense laser fields in four-level atomic systems. For instance, in a four-level ladder system, a coupling field creates electromagnetically induced transparency (EIT) with Aulter-Townes doublet for the probe field while the control field is absent. A large absorption peak appears at resonance as the control field is switched on. We show how such a large absorption leads to optical switching. Further, this large absorption gets diminished and a transparency window appears due to the saturation effects as the strength of the probe field is increased. We further demonstrate that the threshold of the optical bistability can be modified by suitable choices of the coupling and the control fields. In a four-level Y-type configuration, the effect of the control field on saturable absorption (SA) and reverse saturable absorption (RSA) is highlighted in the context of nonlinear absorption of the probe field. We achieve RSA and SA in a simple atomic system just by applying a control field.

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Electromagnetically induced transparency in rubidium

Cited by 29 publications

References 37 publications

Design and construction of cost-effective tapered amplifier systems for laser cooling and trapping experiments

Design and construction of cost-effective tapered amplifier systems for laser cooling and trapping experiments

Collimated blue light generation in rubidium vapor

Optical switching and bistability in four-level atomic systems

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