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Investigate the spatial focusing and phase conjugation characteristics of stimulated photon echoes produced in sodium vapor.

November 15, 1978Applied Physics Letters

Focusing and phase conjugation of photon echoes in Na vapor

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Investigate the spatial focusing and phase conjugation characteristics of stimulated photon echoes produced in sodium vapor.
Applied two sequential optical pulses with distinct wavefront radii of curvature (R1 and R2) to an atomic sodium vapor cell.
Tracked the spatial phase evolution and resultant convergence or divergence of the emitted photon echo signal.
Observed photon echo focusing conforming to the curvature relation 1/RE = 2/R2 − 1/R1.
Demonstrated that the echo center of curvature is governed by the phase transformation φE(r) = 2φ2(r) − φ1(r) inside the sodium medium.

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Implication

Experimental study demonstrates spatial focusing and phase conjugation of photon echoes in sodium vapor, indicating predictable wavefront manipulation using curved optical pulses.

Cite This Study

Griffen et al. (1978) studied this question.

synapsesocial.com/papers/6a937cc4f3532cd145ebb332 https://doi.org/10.1063/1.90193

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Implication

Experimental study demonstrates spatial focusing and phase conjugation of photon echoes in sodium vapor, indicating predictable wavefront manipulation using curved optical pulses.

Focusing and phase conjugation of photon echoes in Na vapor

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Discussion

Implication

Cite This Study

Focusing and phase conjugation of photon echoes in Na vapor

Key Points

Discussion

Implication

Cite This Study

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