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HL: Fachverband Halbleiterphysik

HL 8: Ultra-fast Phenomena I

HL 8.4: Vortrag

Montag, 9. März 2026, 15:45–16:00, POT/0006

Carrier-envelope phase control of ultrafast photocurrents in layered MoS2 — •Johannes Schmuck^{1, 2}, Björn Sinz^{1, 2}, Nina Pettinger^{1, 2}, Sergey Zherebtsov^{1, 2}, and Alexander W. Holleitner^{1, 2} — ¹Walter Schottky Institute and Physics Department, Technical University of Munich, Garching, Germany — ²Munich Center of Quantum Science and Technology, Munich, Germany

We demonstrate carrier-envelope-phase (CEP)-controlled photocurrents in mono-, bi-, and tri-layer MoS2 driven by few-cycle laser pulses. The photocurrent in the two-terminal devices scale quadratically with the field amplitude, indicating perturbative carrier dynamics in the weak-field regime distinct from strong-field tunnelling [1]. Our results extend light-field-sensitive current control from bulk dielectrics, semiconductors, and graphene to two-dimensional transition-metal dichalcogenides, highlighting their potential for electric-field sensitive optoelectronics.

[1] J. Schmuck et al., submitted, arXiv preprint arXiv:2511.08148 (2025).

Keywords: ultrafast; photocurrent; TMDC; light-field control