NTHU Discovers Optical Filamentation Mechanism, Attosecond Pulses Aid Semiconductor Material Inspection
A research team from National Tsing Hua University's Department of Electrical Engineering has successfully utilized the 'optical filamentation' mechanism to generate high-quality isolated attosecond pulses for semiconductor material inspection. This technology naturally compresses laser light, acting like an ultrafast strobe light to capture electron movements, enabling material inspection in advanced semiconductor manufacturing processes.
📋 Article Processing Timeline
- 📰 Published: May 13, 2026 at 18:22
- 🔍 Collected: May 13, 2026 at 18:32 (9 min after Published)
- 🤖 AI Analyzed: May 13, 2026 at 20:05 (1h 33m after Collected)
Central News Agency
(Central News Agency reporter Lu Kang-Chun, Hsinchu City, 13th) A research team from the Department of Electrical Engineering at National Tsing Hua University (NTHU) has utilized the 'optical filamentation' mechanism to guide laser light, causing it to naturally compress and generate high-quality isolated attosecond pulses. These pulses, like an ultrafast strobe light, can be applied to material inspection in advanced semiconductor manufacturing processes.
NTHU's Department of Electrical Engineering today issued a press release stating that this achievement was made by a research team led by Associate Professor Chen Ming-Chang of the Department of Electrical Engineering at National Tsing Hua University. They discovered that when a high-intensity laser enters a gas, it forms a slender and stable 'optical filament.' During propagation, the optical pulse is naturally compressed, and its spatial mode is simultaneously purified.
The Department of Electrical Engineering pointed out that the research team utilized this phenomenon to successfully compress an original laser pulse of approximately 4.7 femtoseconds to about 3.5 femtoseconds, and further generated high-contrast, highly stable isolated attosecond pulses.
Jian You-En, a PhD student and member of the research team, told a Central News Agency reporter that 'attosecond' is an extremely short unit of time. Such pulses are like an ultrafast strobe light that can capture the instantaneous movement of electrons, which can be applied to material inspection in semiconductor manufacturing processes.
Jian You-En said that this high-power laser system, when combined with the 'optical filamentation' mechanism, can directly generate high-quality isolated attosecond pulses. It is 'turn-key,' offering advantages such as high stability, high repetition rate, and low maintenance requirements, making it more widely applicable in academic and industrial fields. (Editor: Lin Shu-Hui) 1150513
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(Central News Agency reporter Lu Kang-Chun, Hsinchu City, 13th) A research team from the Department of Electrical Engineering at National Tsing Hua University (NTHU) has utilized the 'optical filamentation' mechanism to guide laser light, causing it to naturally compress and generate high-quality isolated attosecond pulses. These pulses, like an ultrafast strobe light, can be applied to material inspection in advanced semiconductor manufacturing processes.
NTHU's Department of Electrical Engineering today issued a press release stating that this achievement was made by a research team led by Associate Professor Chen Ming-Chang of the Department of Electrical Engineering at National Tsing Hua University. They discovered that when a high-intensity laser enters a gas, it forms a slender and stable 'optical filament.' During propagation, the optical pulse is naturally compressed, and its spatial mode is simultaneously purified.
The Department of Electrical Engineering pointed out that the research team utilized this phenomenon to successfully compress an original laser pulse of approximately 4.7 femtoseconds to about 3.5 femtoseconds, and further generated high-contrast, highly stable isolated attosecond pulses.
Jian You-En, a PhD student and member of the research team, told a Central News Agency reporter that 'attosecond' is an extremely short unit of time. Such pulses are like an ultrafast strobe light that can capture the instantaneous movement of electrons, which can be applied to material inspection in semiconductor manufacturing processes.
Jian You-En said that this high-power laser system, when combined with the 'optical filamentation' mechanism, can directly generate high-quality isolated attosecond pulses. It is 'turn-key,' offering advantages such as high stability, high repetition rate, and low maintenance requirements, making it more widely applicable in academic and industrial fields. (Editor: Lin Shu-Hui) 1150513
Choose to stand with the facts, every sponsorship you make is a force to protect press freedom.
Download the Central News Agency 'First-hand News' APP to stay updated with the latest news.
The text, images, and audio-visual content on this website may not be reproduced, publicly broadcast, or publicly transmitted and utilized without authorization.