Broadband tunable and multiple noncritical phase matchings in LBO crystal
The multiple (double and triple) phase matchings (noncritical in the frequency and propagation directions of interacting waves) for the sum frequency generation in a lithium triborate (LBO) crystal have been studied. The use of the vectorial group phase matching and multiple noncritical ones for fre...
Збережено в:
| Дата: | 2005 |
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| Автори: | , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
НТК «Інститут монокристалів» НАН України
2005
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| Назва видання: | Functional Materials |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/139971 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | M.E.Kornienko, T.S.Sidenko, V.I.Zadorozhnii / M.E. Kornienko, T.S. Sidenko, V.I. Zadorozhnii // Functional Materials. — 2005. — Т. 12, № 1. — С. 91-96. — Бібліогр.: 9 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | The multiple (double and triple) phase matchings (noncritical in the frequency and propagation directions of interacting waves) for the sum frequency generation in a lithium triborate (LBO) crystal have been studied. The use of the vectorial group phase matching and multiple noncritical ones for frequency conversion in a LBO crystal makes it possible to extend substantially the tuning region of the broadband frequency conversion up to overlapping essentially the whole region of the crystal transparency (0.45 to 2.6 pm) and to attain a large conversion band (≥ 2000 cm⁻¹) at a large permissible acceptance angle of the signal radiation (about 2° for about 3 mm thick crystals) within a broad spectral range. The broadband region of frequency conversion is tuned by variation of the pump wavelength within 0.54 to 2.6 pm range using various interaction types in the principal planes: XZ (ee-o, eo-e, oe-e), YZ (eo-o, oe-o), and XY (oo-e). The broadband frequency conversion of IR radiation at noncritical phase matching combined with the large permissible pumping divergence is expected to be useful in the IR image visualization. |
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