Shanghai Yichi Optoelectronic Technology Co., Ltd
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HDPE polyethylene lens terahertz lens
HDPE polyethylene lens terahertz lens
Product details

HDPE polyethylene lens terahertz lens


Product Introduction:

HDPE is a lightweight elastic crystalline material. It can be heated to 110 ° C or cooled to -45 ÷ -120 ° C. PE has good dielectric properties, corrosion resistance, and radiation resistance. However, it is not stable enough in the ultraviolet band and greasy environments. Biologically speaking, PE is very inactive and easy to handle. At 23 ° C, the density is 0.91-0.925 g/cm3, the tension flow limit is 8-13 MPa, the elastic modulus is 118-350 MPa, and the refractive index is about 1.54 over a wide spectral range. Usually, high-density polyethylene (HDPE) is also used as a component material. In addition to being used as thick lenses and window mirrors, thin HDPE can also be used as THZ polarizers.

Transmittance of HDPE in Terahertz Band

characteristic:

  • The frequency range covers terahertz to far-infrared, 7um-3mm (100GHz-43THz)
  • High transmittance in the terahertz frequency range
  • Stable physical and chemical properties
  • Highly polarized and responsive

Technical parameters:


HDPE

Chinese name

High density polyethylene

type

plano-convex, bi-convex

frequency range

100GHz-43THz

Melting temperature ℃

220~260

crystallinity

80%~90%

Thermal conductivity/W·(m·K)-1

0.42

Dielectric constant/F · m-1 (106Hz)

2.30~2.35

Refractive index

1.54


HDPE lens product model:

model

Diameter(in

Focal length(mm

EW-HDPE-1-19

1

19

EW-HDPE-1-25

1

25

EW-HDPE-1-50

1

50

EW-HDPE-1-75

1

75

EW-HDPE-2-75

2

75

EW-HDPE-3-75

3

75

EW-HDPE-3-100

3

100

EW-HDPE-1-150

1

150

EW-HDPE-3-150

3

150

EW-HDPE-1-200

1

200

EW-HDPE-3-200

3

200

EW-HDPE-1-250

1

250

EW-HDPE-2-250

2

250

EW-HDPE-3-250

3

250

EW-HDPE-1-300

1

300

EW-HDPE-2-300

2

300

EW-HDPE-1-350

1

350

EW-HDPE-3-350

3

350

EW-HDPE-1-400

1

400

EW-HDPE-2-400

2

400

EW-HDPE-3-400

3

400

Other specifications can be customized according to requirements
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