Abstract
Urea l-malic acid (ULMA) is one of the derivatives of urea. ULMA keeps the nonlinear optical properties and broad transparency range of urea with greatly reduced hygroscopicity. ULMA film (2 μm) was prepared with physical vapour deposition (PVD) method. XRD and FTIR measurements show that the film and the ULMA powder have the same composition and crystal structure. Furthermore, the film keeps the nonlinear properties of the ULMA crystal.
Original language | English |
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Pages (from-to) | 1740-1743 |
Number of pages | 4 |
Journal | Materials Letters |
Volume | 60 |
Issue number | 13-14 |
DOIs | |
State | Published - Jun 2006 |
Keywords
- Film
- Organic nonlinear optical material
- Physical vapour deposition