Bright Spatially Coherent Wavelength-Tunable Deep-UV Laser Source Using an 
Ar-Filled Photonic Crystal Fiber

Joly, N.Y.; Nold, J.; Chang, W.; Hoelzer, P.; Nazarkin, A.; Wong, G. K. L.; Biancalana, F.; Russell, P. St. J.

doi:10.1103/PhysRevLett.106.203901

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Bright Spatially Coherent Wavelength-Tunable Deep-UV Laser Source Using an Ar-Filled Photonic Crystal Fiber

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Joly, N.Y.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201141

Nold, J.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201032

Chang, W.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201088

Hoelzer, P.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201137

Nazarkin, A.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201235

Wong, G. K. L.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201017

Biancalana, F.
Biancalana Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201171

Russell, P. St. J.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Joly, N., Nold, J., Chang, W., Hoelzer, P., Nazarkin, A., Wong, G. K. L., et al. (2011). Bright Spatially Coherent Wavelength-Tunable Deep-UV Laser Source Using an Ar-Filled Photonic Crystal Fiber. PHYSICAL REVIEW LETTERS, 106(20): 203901. doi:10.1103/PhysRevLett.106.203901.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-69E9-2

Abstract

We report on the spectral broadening of similar to 1 mu J 30 fs pulses propagating in an Ar-filled hollow-core photonic crystal fiber. In contrast with supercontinuum generation in a solid-core photonic crystal fiber, the absence of Raman and unique pressure-controlled dispersion results in efficient emission of dispersive waves in the deep-UV region. The UV light emerges in the single-lobed fundamental mode and is tunable from 200 to 320 nm by varying the pulse energy and gas pressure. The setup is extremely simple, involving <1 m of a gas-filled photonic crystal fiber, and the UV signal is stable and bright, with experimental IR to deep-UV conversion efficiencies as high as 8 %. The source is of immediate interest in applications demanding high spatial coherence, such as laser lithography or confocal microscopy.