A breakthrough in the application of femtosecond laser in the processing of complex microporous structures
In the field of microfabrication, femtosecond laser technology is gradually beco...
MONO | 2024-11
INDUSTRY
With the rapid development of science and technology, femtosecond laser perforation equipment has become a bright pearl in the field of micro manufacturing. This high-tech equipment is leading the new wave of micro and nano processing technology with its excellent precision and micron-level cutting ability. In this article, we will introduce the working principle, application areas and technical characteristics of femtosecond laser perforation equipment.
Principle of operation
The uniqueness of femtosecond laser perforation equipment lies in the femtosecond laser technology used. Femtosecond laser pulses are extremely short, with a million billion pulses generated in one second, which enables the laser to deliver energy in a very short time for high-precision micromachining.
The device first modulates the laser by means of an optical system to form a focusing point at the micron level. This focusing point then instantaneously irradiates the surface of the material with an extremely high energy density, generating enough energy to penetrate the material and form tiny channels within it. Due to the very short pulse time, thermal effects on the surrounding material are avoided and high-precision micromachining is achieved. This process enables engraving and perforation on a microscopic scale, offering a wide range of possibilities for various applications.
Fields of application
1. Optoelectronics and microelectronics fields
In the field of optoelectronics and microelectronics, femtosecond laser perforation devices are widely used to fabricate miniature photonics devices. By focusing a femtosecond laser onto the surface of an optical material, a variety of micro-optical components, such as microlenses and photonic crystals, can be prepared for modulating and manipulating optical signals.
2. Medical field
In the medical field, femtosecond laser perforation technology is widely used in corneal surgery. Laser in-situ keratomileusis (FS-LASIK) utilises the high precision of femtosecond lasers to achieve micron-level cutting of corneal tissue, providing patients with safer and more precise refractive surgery options.
3. Material Science Research
In the field of materials science, femtosecond laser perforation equipment provides a new way to prepare micro and nano-structured materials. By forming micropores on the surface of materials, the optical, electrical, magnetic and other properties of the materials can be regulated to create new materials with special functions, which are widely used in the fields of sensors and electronic devices.
4. Manufacturing and micro and nano processing
Femtosecond laser perforation equipment is also increasingly significant in the manufacturing industry. Their high precision and micron-level cutting ability make them indispensable tools in micro and nano processing. From miniature parts to microstructured devices, femtosecond laser perforation equipment drives micro-innovation in manufacturing.
Technical Features
1. Ultrafast Pulse Technology
Femtosecond laser perforation equipment adopts ultra-fast pulse technology with extremely short pulse times, enabling the laser to perform fine processing on a microscopic scale without causing thermal damage to the surrounding materials.
2. High Precision Positioning System
The equipment is equipped with a high-precision positioning system, which can realise the control of the processing position and ensure the accuracy and stability of microscopic processing.
3. Wide applicability
Femtosecond laser perforation equipment is applicable to various materials, including metal, plastic, ceramics, etc. It has strong versatility and provides a broad space for application in different fields.
4. Non-contact processing
Due to the characteristics of ultra-short pulse, femtosecond laser perforation equipment realises non-contact processing, which avoids the damage caused by physical contact, and is especially suitable for the fields with very high requirements on materials.
Development trend
1. Multifunctional integration
Future femtosecond laser perforation equipment is expected to achieve multi-functional integration, integration of more micro and nano processing functions, improve the flexibility and diversity of equipment.
2. Automation and Intelligence
With the development of artificial intelligence technology, femtosecond laser perforation equipment will develop in the direction of automation and intelligence. The automation system will realise real-time monitoring and control of the processing process, improving production efficiency and product quality.
3. Development of new materials
The continuous innovation of technology will promote the research and development of new materials. Through femtosecond laser perforation equipment, new materials with superior performance and special functions can be created, expanding their applications in industrial, medical and electronic fields.
Femtosecond laser perforation equipment has become a miracle worker in microcosmic engraving with its high precision, ultra-fast pulse and wide applicability. It has shown great application potential in many fields such as optoelectronics, medicine and material science. With the continuous progress and innovation of technology, it is believed that femtosecond laser perforation equipment will continue to lead the development of micro and nano-processing technology in the future, bringing more surprises and convenience to human society.
