Biomedical subjects

Udit Chatterjee

Publications and source records attributed to Udit Chatterjee.

2 recordsLinked to original sources

PubMed2005

Acceptable composition-ratio variations of a mixed crystal for nonlinear laser device applications.

A theory is developed to predict some crucial parameters that optimize the performance of mixed nonlinear crystals in nonlinear devices. These include acceptable variations of the composition ratio of the parent crystals and the optimal as well as acceptable interaction lengths for any interaction. The theory is successfully applied to make necessary predictions for the newly developed LiIn(Se(x)S(1-x))2 crystal for second-harmonic and optical parametric generation.

Journal Article↗

PubMed2005

Multipass configuration to achieve high-frequency conversion in Li2B4O7 crystals.

A multipass configuration for second-harmonic generation of Nd:YAG laser radiation is demonstrated to produce, for the first time to the authors' knowledge in twin lithium tetraborate crystals, as much as 21% conversion efficiency even though the effective nonlinear coefficient of the crystal is as low as 1/6th that of KDP. Apart from crystals that have large walk-off angles, low effective nonlinear coefficients, or both, the simple experimental setup would also be quite suitable for those crystals, especially infrared crystals, that have large effective nonlinear coefficients but low laser damage thresholds.

Journal Article↗