Distinguishing high-harmonic generation from surface and bulk states in topological insulator Bi2Se3
We demonstrated a scheme to differentiate the high-harmonic generation (HHG) originating from the surface states and bulk states of the topological insulator Bi2Se3. By adopting two-color mid-infrared laser fields on Bi2Se3, we found that the nonlinear response sensitively depends on the relative ph...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Optica Publishing Group (formerly OSA)
2023
|
| Subjects: | |
| Online Access: | View Fulltext in Publisher |