Chongfan Technology
News
27
2026
-
04
Dispersion Microvortices for Integrating Miniature Spectrometers
Author:
A team from Zhejiang University, comprising Jianrong Qiu, Zhuo Wang, and Bo Zhang, has demonstrated that ultrashort-laser-induced microvortices fabricated on polycarbonate substrates can generate complex dispersion signatures at the microscale. This approach leverages the photoelastic effect to deliver a rich and versatile spectral response, enabling highly efficient sampling. The resulting dispersive structures exhibit a broad operating bandwidth (400–1550 nm), compact dimensions (10 × 10 µm²), and insensitivity to viewing angle. Moreover, the method is compatible with various thermoplastic polymers and demonstrates excellent weather resistance. The authors further show that these microvortex structures can be integrated with image sensors for on-chip spectral analysis and high-resolution microscopic spectroscopic imaging.
The research findings were published in Nature Electronics on April 20, 2026, under the title “Optical dispersion using micro-vortices in thermoplastic polymers for integrated microspectrometers.”
Figure 1: Ultrafast Laser-Induced Dispersion Microvortices in Thermoplastic Polymers and Their Spectroscopic Applications
Figure 2: Mechanism of ultrafast laser-induced dispersive microvortices in thermoplastic media
Figure 3: Superior Performance of Dispersive Microvortices
Figure 4: Spectral Detection Using Dispersive Microvortices
Figure 5: Wavelength Resolution and Spectral Resolution of DVOS
Figure 6: Spectral Imaging Based on DVOS
Source: Optics World
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