| 摘要 |
<p>Disclosed is a wavelength conversion device (1) comprising a supporting substrate (8), a wavelength conversion substrate (2) having a thickness T of not less than 10 µm but not more than 100 µm, which is made of a Z-plate of a ferroelectric single crystal and provided with a periodic polarization inversion structure (5), a buffer layer (6) formed on a bottom surface (2b) of the wavelength conversion substrate (2), and an organic resin adhesive layer (7) having a thickness t of not less than 0.6 µm but not more than 2.0 µm, which is used for bonding the supporting substrate (8) with the buffer layer (6).</p> |
