Optical frequency conversion by a rotating molecular wave plate

Sokolov, Alexei V.; Sharpe, Scott J.; Shverdin, M. Y.; Walker, Daniel A.; Yavuz, D. D.; Yin, G. Y.; Harris, S. E.

doi:10.1364/ol.26.000728

Cited by 23 publications

(9 citation statements)

References 19 publications

(15 reference statements)

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“…(6) shows a simple Rabi-type oscillation and frequency shift that is consistent with that of light propagating through a rotating wave plate [8,27]. Our simplified classical model of a "molecular wave plate" corresponds to experiment [28], in which highly efficient single-sideband frequency conversion was indeed observed via coherent driving of a single rovibrational Raman transition in molecular deuterium.…”

supporting

confidence: 55%

Optics of a Gas of Coherently Spinning Molecules

2014

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We consider the optical properties of a gas of molecules that are brought to fast unidirectional spinning by a pulsed laser field. It is shown that a circularly polarized probe light passing through the medium inverts its polarization handedness and experiences a frequency shift controllable by the sense and the rate of molecular rotation. Our analysis is supported by two recent experiments on the laser-induced rotational Doppler effect in molecular gases and provides a good qualitative and quantitative description of the experimental observations.

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supporting

confidence: 55%

Optics of a Gas of Coherently Spinning Molecules

2014

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“…These experiments currently hold the world record for the shortest pulses ever synthesized in the optical region of the spectrum. When the driving laser beams are opposite circularly polarized, as is the case in Figure 1a, the generation of sidebands from the driving lasers themselves is suppressed due to angular momentum conservation rules [42]. In this regime, a frequency upshifted or downshifted sideband from an appropriately-polarized mixing beam will be produced, and the molecular medium can be used as an efficient frequency converter.…”

Section: Molecular Modulationmentioning

confidence: 99%

Continuous-Wave Molecular Modulation Using a High-Finesse Cavity

2014

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Abstract:We demonstrate an optical modulator at a frequency of 90 THz that has the capability to modulate any laser beam in the optical region of the spectrum. The modulator is constructed by placing deuterium molecules inside a high-finesse cavity and driving a vibrational transition with two continuous-wave laser beams. The two beams, the pump and the Stokes, are resonant with the cavity. The high intra-cavity intensities that build up drive the molecules to a coherent state. This molecular coherence can then be used to modulate an independent laser beam, to produce frequency up-shifted and down-shifted sidebands. The beam to be modulated is not resonant with the cavity and thus the sidebands are produced in a single pass.

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“…The two laser beams are focused to a spot size of %400 mm in the centre of a 50 cm H 2 cell, at a pressure of 200 torr. Due to angular momentum selection rules, no additional sideband generation occurs [15].…”

Section: Raman Self-focusingmentioning

confidence: 99%