UV femtosecond amplifier TwinAmp

The „TwinAmp“ is a special excimer amplifier having two discharge channels. This system architecture allows reaching a very high overall gain. Moreover, it also makes it possible to implement a spatial filter and a pulse compressor between the amplifier modules. The benefit is a shorter pulse duration and a better signal to noise ratio at the output. This model is particularly favorable for applications demanding extremely high focused intensities.

Wavelength	248 nm
Energy per pulse	40 mJ (for > 50 µJ seed pulse energy @ 248 nm)
Jitter	± 2 ns (relative to trigger pulse)
Beam size	36 x 36 mm
Beam quality	1.5 x diffraction limited (for M^2 = 1 at the input)
Pulse duration	250 fs (for < 180 fs seed pulse)
ASE background	< 10^10 in the far field

Table 1: Specifications

Schema: UV femtosecond amplifier TwinAmp