| タイトル | Growth and characterization of binary and pseudo-binary 3-5 compounds exhibiting non-linear optical behavior. Undergraduate research opportunities in microgravity science and technology |
| 本文（外部サイト） | http://hdl.handle.net/2060/19930012174 |
| 著者（英） | Witt, August F. |
| 著者所属（英） | Massachusetts Inst. of Tech. |
| 発行日 | 1992-02-01 |
| 言語 | eng |
| 内容記述 | In line with the specified objectives, a Bridgman-type growth configuration in which unavoidable end effects - conventionally leading to growth interface relocation - are compensated by commensurate input-power changes is developed; the growth rate on a microscale is predictable and unaffected by changes in heat transfer conditions. To permit quantitative characterization of the growth furnace cavity (hot-zone), a 3-D thermal field mapping technique, based on the thermal image, is being tested for temperatures up to 1100 C. Computational NIR absorption analysis was modified to now permit characterization of semi-insulating single crystals. Work on growth and characterization of bismuth-silicate was initiated. Growth of BSO (B12SiO20) for seed material by the Czochralski technique is currently in progress. Undergraduate research currently in progress includes: ground based measurements of the wetting behavior (contact angles) of semiconductor melts on substrates consisting of potential confinement materials for solidification experiments in a reduced gravity environment. Hardware modifications required for execution of the wetting experiments in a KC-135 facility are developed. |
| NASA分類 | OPTICS |
| レポートNO | 93N21363
NASA-CR-192143
NAS 1.26:192143 |
| 権利 | No Copyright |
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