Patent ID: 8779768

Claim:
A nuclear magnetic resonance probe, comprising: a first radiofrequency coil patterned on a dielectric substrate, said first radiofrequency coil formed of conductive material, said first radiofrequency coil generating a first magnetic field that is resonant at a first radiofrequency; a second radiofrequency coil patterned on said dielectric substrate, said second radiofrequency coil formed of conductive material, said second radiofrequency coil generating a second magnetic field that is resonant at a second radiofrequency, said first radiofrequency coil and said second radiofrequency coil forming a first double-resonance apparatus; a second double-resonance apparatus positioned substantially parallel to said first double-resonance apparatus; and a sample region formed between said first double-resonance apparatus and said second double-resonance apparatus, said sample region configured to receive a nuclear magnetic resonance sample, wherein said second magnetic field is orthogonal to said first magnetic field at their respective resonant frequencies in said sample region, said first radiofrequency coil patterned on a side of said dielectric substrate that is proximal to said nuclear magnetic resonance sample, said second radiofrequency coil patterned on an opposite side of said dielectric substrate that is distal to said nuclear magnetic resonance sample, said first radiofrequency coil being a figure-eight racetrack resonator on a first side of said dielectric substrate and said second radiofrequency coil being a spiral resonator on a second side of said dielectric substrate, wherein said first magnetic field and said second magnetic field excite or detect respective nuclear magnetic resonance signals at said first radiofrequency and said second radiofrequency alternately or simultaneously.