N C J van der Valk

Measurement of THz Spot Sizes with a λ/200 Diameter in the Near-Field of a Metal Tip

N C J van der Valk, P C M Planken, 2003, Journal of biological physics.

Spot-size reduction in terahertz apertureless near-field imaging.

N C J van der Valk, P C M Planken, 2004, Optics letters.

Towards terahertz near-field microscopy

N C J van der Valk, P C M Planken, 2003, Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences.