X-ray laser without inversion in a three-level ladder system

Braunstein, D.; Shuker, R.

doi:10.1103/physreva.68.013812

Cited by 29 publications

(28 citation statements)

References 30 publications

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“…In the experiments conducted with different atomic systems like Na, Rb, etc., LWI was observed in the visible range of the spectrum. A few theoretical works in atoms have reported LWI in low-wavelength region [16]. It should be noted that, to single out a vibrational level for excitation, the transition frequency of the laser should be carefully chosen so as to avoid resonant excitation from other vibrational levels of the ground state to different vibrational levels of the excited state.…”

Section: Dependence Of Gain On the Choice Of Vibrational And Rotationmentioning

confidence: 99%

Amplification without population inversion in molecules

Bhattacharjee

Sanyal²,

Dastidar

2005

Journal of Molecular Spectroscopy

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Section: Dependence Of Gain On the Choice Of Vibrational And Rotationmentioning

confidence: 99%

Amplification without population inversion in molecules

Bhattacharjee

Sanyal²,

Dastidar

2005

Journal of Molecular Spectroscopy

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“…In recent publications we have investigated gain without inversion in a three level V and ladder schemes in the dressed and bare state pictures using two CW external coherent fields [19,20]. The inversionless gain obtained at the transient regime for the ladder scheme is significantly higher than in the steady state one, especially at the first Rabi cycle.…”

Section: Introductionmentioning

confidence: 95%

Counterintuitive Gaussian pulse sequence in three-level ladder scheme

et al. 2012

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In a recent publication we have studied counterintuitive pulse sequence applied to a three level lad der scheme, utilizing rectangular shaped pulses. In this research we investigate amplification without popula tion inversion in a three level ladder system interacting with two electromagnetic fields, namely, the probe and coupling fields. We take both probe and drive fields in the form of Gaussian shaped pulses. In a counterintuitive sequence scheme, the short probe pulse is introduced prior to the application of the coupling field, in contrast to a regular sequence scheme, where both fields are introduced at the same time. The influence of varying the probe pulse width and time delay between the initiation times of the probe and coupling fields on transient probe gain is investigated. It is found that the system exhibits a kind of memory about previously applied weak probe pulse. This may allow for detection of the past event by applying a strong drive pulse in the future.

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“…Since the seminal works of Kocharovskaya, Harris and Scully et al [1], lasing without inversion (LWI) has attracted tremendous attention (for example, see recent review [2] and papers [3][4][5][6][7][8][9] and references therein). Several schemes have been proposed over the past few decades to realize LWI.…”

Section: Introductionmentioning

confidence: 99%

Investigation of transient process and steady output of lasing without inversion

Fan

Tong

et al. 2005

Journal of Modern Optics

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The transient evolution processes and steady outputs of continuous wave lasing without inversion (LWI) and self-pulsing LWI in a resonant open V type threelevel system are studied. It was found that the two kinds of LWI have some obvious differences not only from the steady outputs but also from the transient evolution processes. The effects of the unsaturated gain coefficient, cavity loss coefficient, ratio of the atomic injection rates and atomic exit rate on the transient evolution processes and steady outputs are discussed.

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X-ray laser without inversion in a three-level ladder system

Cited by 29 publications

References 30 publications

Amplification without population inversion in molecules

Amplification without population inversion in molecules

Counterintuitive Gaussian pulse sequence in three-level ladder scheme

Investigation of transient process and steady output of lasing without inversion

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