Optical tunneling effect calculation of a solid immersion lens for use in optical disk memory.

Area of Science:

• Optics and Photonics
• Electromagnetism
• Materials Science

Background:

• Solid immersion lenses (SILs) are crucial for enhancing resolution in optical data storage.
• Achieving high numerical aperture (N.A.) in SILs is key to super-resolution imaging and data density.
• Understanding optical tunneling phenomena is essential for advanced optical recording technologies.

Purpose of the Study:

• To investigate the optical tunneling beam characteristics of high numerical aperture (N.A.) solid immersion lenses (SILs).
• To analyze the impact of polarization and energy transfer on the focused spot size and efficiency in SILs.
• To provide theoretical insights into optimizing SIL performance for high-density optical recording.

Main Methods:

• Utilized electromagnetic theory to model and calculate optical tunneling beam properties.
• Simulated the behavior of light interacting with a high-N.A. SIL.
• Analyzed the dependence of spot size and energy-transfer efficiency on various optical parameters.

Main Results:

• Successfully calculated the optical tunneling beam characteristics for high-N.A. SILs.
• Demonstrated a clear dependence of the tunneling beam spot size on the polarization direction.
• Quantified the energy-transfer efficiency of the optical tunneling effect in SILs.

Conclusions:

• Solid immersion lenses offer a viable method for reducing spot size in optical recording.
• Electromagnetic theory provides an accurate framework for understanding SIL optical tunneling.
• Polarization control and energy transfer are critical factors for optimizing SIL performance in high-density applications.