Adiabatic refocusing of nuclear spins in Tm3+:YAG

Abstract

We show that the optical absorbance detection of nuclear spin echo gives direct access to the spin concentration, unlike most coherent signal detection techniques where the signal intensity/amplitude is difficult to connect experimentally with the spin concentration. This way we measure the spin refocusing efficiency in a crystal of Tm${}^{3+}$:YAG. Given the large inhomogeneous broadening of the spin transition in this material, rephasing the spins with the usual hard pulse procedure would require excessively high radiofrequency power. Instead we resort to an adiabatic pulse sequence that perfectly returns the spins to their initial common orientation, at low power cost.

References in corpus (8)

• Dark-State Polaritons in Electromagnetically Induced Transparency
• Multimode quantum memory based on atomic frequency combs
• Efficiency optimization for Atomic Frequency Comb storage
• Efficient light storage in a crystal using an Atomic Frequency Comb
• Experimental Tailoring of a Three-Level Lambda System in Tm3+:YAG
• Branching ratio measurement of a "Lambda" system in Tm3+:YAG under magnetic field
• Optical Excitation of Nuclear Spin Coherence in Tm3+:YAG
• Spectral hole burning for stopping light

Cited by in corpus (9)

• Revival of Silenced Echo and Quantum Memory for Light
• Spin coherence lifetime extension in Tm${}^{3+}$:YAG through dynamical decoupling
• Efficient and robust signal sensing by sequences of adiabatic chirped pulses
• Optical and spin manipulation of non-Kramers rare-earth ions under weak magnetic field for quantum memory applications
• Securing coherence rephasing with a pair of adiabatic rapid passages
• Adiabatic Passage and Spin Locking in Tm${}^{3+}$:YAG
• Rephasing efficiency of sequences of phased pulses in spin-echo and light-storage experiments
• Efficient and reversible optical-to-spin conversion for solid-state quantum memories
• Efficiency of optimal control for noisy spin qubits in diamond