Whispering Gallery Mode Lasing in Sm³⁺doped ZnO Microspheres

• Characterized by selective, sharp resonances.
• Enables efficient lasing with precise spectral output in visible range.
• Applicable for displays, optical sensors, lighting.

Low Lasing Threshold and High Q-value Laser Technology

• Achieves low lasing thresholds.
• Enhances efficiency
• High Q-values improve resonance sharpness and stability.

Laser Ablation Synthesis of Microspheres

• Fabricates Sm³⁺doped ZnO microspheres.
• Ensures high crystallinity, smooth surfaces, and scalable production.
• Compares to complex CVD or sol-gel processes.

ZnO Matrix Emissions: Sharp Emissions from Sm³⁺ Transitions

• Sm³⁺ ions produce well-defined emissions.
• Transitions in 4f electron levels ideal for visible light emission.
• Highly efficient for visible wavelength applications.

Laser Ablation Technique:

• Cost-Effective, Scalable
• Simpler, cheaper, scalable alternative to traditional methods.
• Avoids complex, costly CVD and sol-gel processes.

Invention Enhances Efficiency with Low Thresholds”

• Operates with low lasing thresholds.
• High Q-values reduce energy consumption.
• Reduces energy consumption compared to conventional technologies.

Sm³⁺ Transitions Lasing Emissions

• Crucial for precision applications like optical sensing and lighting.

Technology Versatility:

• Tailored for visible wavelength emissions (550–750 nm).
• Offers advantages for advanced displays, sensors, lighting systems.

Laser Ablation Synthesized Microspheres

• Result in efficient light generation and propagation.