| 摘要 |
<p>A method for recording on an optical recording medium (10) having a visible information recording layer (24) comprises irradiating the visible information recording layer (24) with a laser light (38) to change a refractive index of the layer, thereby changing the wavelength of an interfering light to generate an interference color. The refractive index is changed by controlling a stored laser power of the laser light (38). Specifically, the laser light (38) applied to the visible information recording layer (24) is a continuous laser light or a pulsed laser light, and the stored laser power is controlled by changing the laser power of the continuous laser light or the pulse period of the pulsed laser light.
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