Biomedical subjects

L Windholz

Publications and source records attributed to L Windholz.

11 recordsLinked to original sources

PubMed2004

Phase correlation of laser waves with arbitrary frequency spacing.

The theoretically predicted correlation of laser phase fluctuations in Lambda-type interaction schemes is experimentally demonstrated. We show that the mechanism of correlation in a Lambda scheme is restricted to high-frequency noise components, whereas in a double-Lambda scheme, due to the laser phase locking in a closed-loop interaction, it extends to all noise frequencies. In this case the correlation is weakly sensitive to coherence losses. Thus the double-Lambda scheme can be used to correlate electromagnetic fields with carrier frequency differences beyond the GHz regime.

Journal Article↗

PubMed1999

Rotational Analysis of the LiHg 2(2)Pi(3/2)-X(2)Sigma(+)(1/2) (v' = 0 <-- v" = 0, 1, 2) Vibronic Bands.

We present a complete analysis of the previously reported LiHg 2(2)Pi(3/2)-X(2)Sigma(+) excitation spectrum [X. Li, P. Pircher, D. Gruber, and L. Windholz, Chem. Phys. Lett. 263, 463 (1996)]. The v' = 0 - v" = 0, 1, 2 vibronic bands are analyzed and the rotational transitions are identified. The assigned rotational transitions are initially fitted on a band-to-band basis. A global fit is performed afterwards for all the known vibronic transitions of the LiHg molecules. In the fit the ground state molecular constants are separated into spin-rotation coupling terms and Dunham-type coefficients. The obtained Dunham coefficients are used to derive the molecular potential for the ground electronic state using the inverted perturbation approach (IPA). The equilibrium bond length was found to be 2.9528(6) Å for the LiHg ground state. Copyright 1999 Academic Press.

Journal Article↗

PubMed1996