Single-cycle probing of the dynamics of the insulator-to-metal phase transition in VO₂

Santanu Mandal

doi:10.18453/rosdok_id00005659

Santanu Mandal

Single-cycle probing of the dynamics of the insulator-to-metal phase transition in VO₂

Universität Rostock, 11.06.2025

https://doi.org/10.18453/rosdok_id00005659

Abstract: This thesis uses single-cycle and few-cycle femtosecond pulses to explore two major frontiers in condensed-matter and strong-field physics. First, single-cycle excitation clarifies the insulator-to-metal transition mechanism in M1-VO₂ by separating electronic and structural dynamics and revealing the anharmonic V–V bond oscillation central to the phase change. Second, it details the development of a solid-state high harmonic spectroscopy apparatus that enables precise study of the transition from perturbative to nonperturbative or extreme nonlinear optics in bulk crystals for the first time.

Dissertation Freier Zugang

Titel:

Single-cycle probing of the dynamics of the insulator-to-metal phase transition in VO₂

Beteiligte Personen:

Santanu Mandal[VerfasserIn]
	1406944173
Eleftherios Goulielmakis[AkademischeR BetreuerIn]
	0000-0003-3386-0245
	130312207
	Institut für Physik, Universität Rostock
Thomas Brabec[AkademischeR BetreuerIn]
	13593625X
	Department of Physics, University of Ottawa

Beteiligte Körperschaften:

Universität Rostock[Grad-verleihende Institution]
	38329-6
Universität Rostock. Mathematisch-Naturwissenschaftliche Fakultät[Grad-verleihende Institution]
	2147083-2

Zusammenfassung:

This thesis uses single-cycle and few-cycle femtosecond pulses to explore two major frontiers in condensed-matter and strong-field physics. First, single-cycle excitation clarifies the insulator-to-metal transition mechanism in M1-VO₂ by separating electronic and structural dynamics and revealing the anharmonic V–V bond oscillation central to the phase change. Second, it details the development of a solid-state high harmonic spectroscopy apparatus that enables precise study of the transition from perturbative to nonperturbative or extreme nonlinear optics in bulk crystals for the first time. [Englisch]

Dokumenttyp:

Dissertation

Einrichtung:

Mathematisch-Naturwissenschaftliche Fakultät

Sprache:

Englisch

Sachgruppe der DNB:

530 Physik

Umfang:

1 Online-Ressource (xiv, 120 Seiten)

Veröffentlichung /
Entstehung:

Rostock: Universität Rostock