What does this research mean for the field?

High-harmonic generation in topological materials exhibits distinctive spectral signatures, such as significant circular dichroism and enhanced harmonic yields, which are driven by underlying topological properties like nontrivial Berry curvature and unique edge or surface states. Novelty: ClaimNovelty.SYNTHESIS. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To review the ultrafast electron mechanisms governing high-harmonic generation in topological quantum materials and evaluate which spectral signatures reliably indicate underlying topological order.

September 5, 2026Journal of Physics Condensed MatterOpen Access

High-harmonic generation in topological materials: a comprehensive review

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Authors

MRMuhammmad Subhan RiazUniversity of Electronic Science and Technology of China HDHongxiang DengUniversity of Electronic Science and Technology of China XXXia XiangShanghai University

Discussion

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Overview

Review demonstrates distinct high-harmonic spectral signatures across topological quantum materials, highlighting nonlinear optics as a viable probe for topological phase and electronic order.

Key Points

To review the ultrafast electron mechanisms governing high-harmonic generation in topological quantum materials and evaluate which spectral signatures reliably indicate underlying topological order.
Synthesized theoretical and experimental literature on high-harmonic generation across three primary topological classes: topological insulators, semimetals, and topological superconductors.
Evaluated nonlinear optical responses, assessing the influence of Berry curvature, topological invariants, and surface or edge states on harmonic spectra.
High-harmonic emission in topological materials exhibits distinct optical signatures, including pronounced circular dichroism, anomalous ellipticity dependence, and enhanced harmonic yields.
Identified that while certain high-harmonic features serve as topology-specific indicators, others reflect topology-sensitive effects that remain subject to ongoing scientific debate.

Cite This Study

Riaz et al. (2026) studied this question.

synapsesocial.com/papers/6a9bd3a66b95aff0620eae0b https://doi.org/10.1088/1361-648x/aea1b4

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September 5, 2026Journal of Physics Condensed MatterOpen Access

High-harmonic generation in topological materials: a comprehensive review

View Full Paper

Ask AI

Bookmark

Authors

MRMuhammmad Subhan RiazUniversity of Electronic Science and Technology of China HDHongxiang DengUniversity of Electronic Science and Technology of China XXXia XiangShanghai University

Discussion

Member takes

Overview

Review demonstrates distinct high-harmonic spectral signatures across topological quantum materials, highlighting nonlinear optics as a viable probe for topological phase and electronic order.

Key Points

To review the ultrafast electron mechanisms governing high-harmonic generation in topological quantum materials and evaluate which spectral signatures reliably indicate underlying topological order.
Synthesized theoretical and experimental literature on high-harmonic generation across three primary topological classes: topological insulators, semimetals, and topological superconductors.
Evaluated nonlinear optical responses, assessing the influence of Berry curvature, topological invariants, and surface or edge states on harmonic spectra.
High-harmonic emission in topological materials exhibits distinct optical signatures, including pronounced circular dichroism, anomalous ellipticity dependence, and enhanced harmonic yields.
Identified that while certain high-harmonic features serve as topology-specific indicators, others reflect topology-sensitive effects that remain subject to ongoing scientific debate.

Cite This Study

Riaz et al. (2026) studied this question.

synapsesocial.com/papers/6a9bd3a66b95aff0620eae0b https://doi.org/10.1088/1361-648x/aea1b4

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