Figure | Tunable Multicolor Luminescence and Image Generation in RE³⁺-Doped Glasses Using Laser Excitation Modulation. (IMAGE)
Caption
Figure | Tunable Multicolor Luminescence and Image Generation in RE3+-Doped Glasses Using Laser Excitation Modulation. a, Luminescence photographs of RE3+-doped glasses showing multicolor upconversion luminescence tuning (1–8) under varying excitation frequencies and pulse widths with 980 nm and 808 nm laser excitation. b, Synchronization of separate mirror signals via pulse modulation using two waveform generators to tailor parameters such as frequency, pulse width, and power density to optimize laser operation, and construction of selected image. c) (upper row) Front view photographs depicting the color images emitted from the RE3+-doped monolithic glasses (red circle under 980 nm continuous excitation (left), green bird under 980 nm pulsed excitation (middle), blue cat 808 nm continuous excitation (right), (lower row) Schematic illustration of the computational design process for generating images (left), side views of images (a green cube (middle) and a green cylinder (left)) created in the volume of glass sample under 980 nm pulsed excitation under standard indoor lighting conditions and in darkness, respectively.
Credit
by Utku Ekim, Diğdem Özkutay et al.
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CC BY