Hydrogen-implanted SeGe alloys as optical recording media

Area of Science:

• Materials Science
• Optical Engineering
• Thin Film Technology

Background:

• Selenium-germanium (Se(x)Ge(1-x)) thin films are utilized as optical recording media.
• The influence of hydrogen implantation on these films' properties is not fully understood.

Purpose of the Study:

• To investigate the impact of hydrogen implantation on optical recording parameters of Se(x)Ge(1-x) thin films.
• To determine the optimal hydrogen ion concentration for enhanced recording performance.

Main Methods:

• Thin films of Se(x)Ge(1-x) with varying x values (0.33, 0.5, 0.67) were prepared.
• Hydrogen ion implantation was performed in the range of 10^14 to 10^16 ions/cm^2.
• Optical recording parameters, including writing energy and contrast ratio, were measured. Pulsed holography was also demonstrated.

Main Results:

• Hydrogen implantation significantly affected optical recording parameters.
• Specific ion concentrations led to improved writing energy and contrast ratios.
• Successful demonstration of pulsed holography was achieved, indicating potential for advanced optical data storage.

Conclusions:

• Hydrogen implantation is a viable method for optimizing Se(x)Ge(1-x) thin films for optical recording.
• The study provides valuable data for the development of next-generation optical storage media.
• Further research can explore the underlying mechanisms and long-term stability.