Table 1 Phase-matching conditions to achieve efficient DFG in PPLN at mid-infrared wavelengths

From: Mid-infrared computational temporal ghost imaging

Mid-infrared wavelength (μm)

Pump wavelength (μm)

PPLN period (μm)

Temperature (°C)

3.2

1.042

30.10

125.8

3.4

1.060

30.10

148.3

3.7

1.088

30.10

112.5

4.08

1.120

29.52

100.2

4.3

1.135

29.08

109.3