Terahertz Laser System

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This invention describes a terahertz laser system that generates high-intensity, broadband terahertz radiation using a pump laser and a nonlinear organic crystal. The system efficiently covers the difficult 'terahertz gap' frequency range (1–20 THz), produces tightly focusable and symmetric THz beams, and allows for flexible pulse shaping, all with a straightforward and scalable setup. The technology is especially promising for medical applications like skin cancer treatment, as well as various research and industrial uses.

Use CasesContent extracted from patent full text and abstract with AI.

• Non-invasive skin cancer treatment using targeted terahertz pulses to destroy malignant cells without harming healthy tissue.
• Terahertz-based medical diagnostics and imaging, offering safer and higher-resolution alternatives to some traditional imaging methods.
• Fundamental research in physics, chemistry, and biology, including exploration of ultrafast processes and nonlinear phenomena in gases and solids.
• Development of ultrafast optical switches (e.g., for x-ray or magnetic switching) in high-speed electronics or data storage.
• Detection of explosives, drugs, or other hazardous materials in security screening, leveraging the unique signatures of materials in the THz range.
• Material characterization and quality control in manufacturing, since THz waves interact sensitively with various physical and chemical structures.

BenefitsContent extracted from patent full text and abstract with AI.

• Covers the full terahertz frequency gap (1–20 THz), surpassing the limitations of prior technologies.
• Produces high-intensity THz pulses with excellent beam symmetry and tight focus for precise applications.
• Allows for generation of nearly arbitrary THz pulse shapes, enhancing adaptability for different needs.
• Enables non-destructive, non-ionizing treatments and diagnostics, reducing health risks to patients and operators.
• Scalable and simple setup using mosaic-like organic crystal structures for higher power and larger area coverage.
• Stable, phase-controlled THz pulses suited for sensitive physical experiments and advanced technological applications.

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Patent Abstract

It is the objective of the present invention to provide a Terahertz laser system. This objective is achieved according to the invention by a Terahertz laser apparatus, for example for use in skin cancer treatments, comprising: • a) a pump laser for generating a collimated near/mid-infrared pump laser pulse; • b) an organic crystal which receives the collimated near/mid-infrared pump laser pulse thereby generating Terahertz radiation by optical rectification in the nonlinear organic crystal; and • c) a low-pass filter for separating collimated near/mid-infrared pump laser pulse from the generated Terahertz radiation.