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A simple technique of enhancement of efficiency in optical frequency conversion
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10.1063/1.2794427
/content/aip/journal/apl/91/14/10.1063/1.2794427
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/14/10.1063/1.2794427

Figures

Image of FIG. 1.
FIG. 1.

(a): Schematic experimental arrangement for second harmonic generation of Nd:YAG laser radiation in LB4 crystal. L1 and L2 are both cylindrical and spherical lenses. F1 is a filter having 99% transmitivity to , and blocks completely . D1 is the energy meter. (b) Schematic experimental arrangement for third harmonic generation of Nd:YAG laser radiation in LB4 crystal. L1 and L2 are both cylindrical and spherical lenses. F1 is a filter, which transmits 532 and , and blocks completely . F2 is another filter, which blocks completely and having 95% transmitivity to . D1 is the energy meter.

Image of FIG. 2.
FIG. 2.

Illustration of measured second harmonic energy on changing the crystal position from the lens and varying the energy of the input beam using long focal length lenses. Here, curves 1–5 (symbols are ●, ◆, ▴, ∎, and ▾, respectively) correspond to focusing by cylindrical lens, while the curves 6–10 (symbols are ●, ◆, ▴, ∎, and ▾, respectively) correspond to focusing by spherical lens.

Image of FIG. 3.
FIG. 3.

Illustration of measured second harmonic energy on changing the crystal position from the lens and varying the energy of the input beam using long focal length lenses. Here, curves 1–5 (symbols are ●, ◆, ▴, ∎, and ▾, respectively) correspond to focusing by cylindrical lens, while the curves 6–10 (symbols are ●, ◆, ▴, ∎, and ▾, respectively) correspond to focusing by spherical lens.

Image of FIG. 4.
FIG. 4.

Illustration of measured third harmonic energy on changing the crystal position from the lens and varying the energy of the input beam using long focal length lenses. Here, curves 1–5 (symbols are ●, ◆, ▴, ∎, and ▾, respectively) correspond to focusing by cylindrical lens, while the curves 6–10 (symbols are ●, ◆, ▴, ∎, and ▾, respectively) correspond to focusing by spherical lens.

Image of FIG. 5.
FIG. 5.

Illustration of measured third harmonic energy on changing the crystal position from the lens and varying the energy of the input beam using long focal length lenses. Here, curves 1–5 (symbols are ●, ◆, ▴, ∎, and ▾, respectively) corresponds to focusing by cylindrical lens, while the curves 6–10 (symbols are ●, ◆, ▴, ∎, and ▾, respectively) correspond to focusing by spherical lens.

Tables

Generic image for table
Table I.

Some calculated interacting parameters for SHG of focused by cylindrical and spherical lenses. , calculated second harmonic energy by focusing with a cylindrical lens and , calculated second harmonic energy by focusing with a spherical lens.

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/content/aip/journal/apl/91/14/10.1063/1.2794427
2007-10-02
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: A simple technique of enhancement of efficiency in optical frequency conversion
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/14/10.1063/1.2794427
10.1063/1.2794427
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