Physics: Elevating Imaging Quality to a New Height: Harnessing Synthetic Complex Frequency Waves to Overcome Optical Loss in Superlenses

 

Imaging acts as a window that reveals hidden realms in biology, medicine, and materials science, allowing us to explore the mysteries of the microscopic world. However, despite impressive advancements in superlenses, there is a drawback: some of the valuable optical energy is converted to heat during imaging, which hampers performance. To tackle this challenge, our research team has introduced a practical solution called the synthetic complex frequency wave (CFW) approach.

Imagine ordinary waves as gentle ripples on a calm lake, oscillating in a soothing pattern but lacking the ability to amplify themselves. In contrast, CFW possesses both oscillation and amplification components, capable of energising weakened optical signals. It is like a lake that can sustain its oscillating pattern for an extended duration. This CFW approach effectively addresses the image degradation caused by the conversion of optical energy into heat.

 
This research opens the door to a wealth of clearer images, similar to a sharper lens that enhances our quest for knowledge, unveiling the beauty found even in the tiniest details.

 

港⼤物理學家研發新⼀代光學技術，利⽤合成複頻波 ⽅法克服損耗，提升超透鏡成像品質。