太赫茲光學(xué)元件--Teflon特氟龍定制
TEFLON特氟龍產(chǎn)品可以用于太赫茲的光學(xué)元件，下圖是特氟龍在太赫茲范圍的吸收：
太赫茲透鏡：
定制太赫茲柱面鏡：
Microtech Instruments 太赫茲偏振片：
| Polarizer Model | Wire diameter / Wire spacing (mm) | Clear aperture / External diameter (mm) |
| G25 x 10-S | 10 / 25 | 40 / 50 |
| G30 x 10-S | 10 / 30 | 40 / 50 |
| G30 x 10-L | 10 / 30 | 88 / 98 |
| G45 x 10-S | 10 / 45 | 40 / 50 |
| G45 x 10-L | 10 / 45 | 88 / 98 |
| G50 x 20-S | 20 / 50 | 40 / 50 |
| G50 x 20-L | 20 / 50 | 88 / 98 |
| G60 x 15-S | 15 / 60 | 40 / 50 |
| G60 x 15-L | 15 / 60 | 88 / 98 |
| G80 x 15-S | 15 / 80 | 40 / 50 |
| G80 x 15-L | 15 / 80 | 88 / 98 |
| G100 x 20-S | 20 / 100 | 40 / 50 |
| G100 x 20-L | 20 / 100 | 88 / 98 |
| G200 x 20-S | 20 / 200 | 40 / 50 |
| G200 x 20-L | 20 / 200 | 88 / 98 |
InfraSpecs 中紅外/遠(yuǎn)紅外/太赫茲偏振片
model P03
40cm-1.............5000cm-1
1.2THz..........150THz
250um........2um
model P02
30cm-1.............2500cm-1
0.9THz..........75THz
300um........4um
model P01
4cm-1..................800cm-1
120GHz..........24THz
2.5mm........12um
High contrast Far-Infrared and Mid-Infrared Polarizer P03
High contrast polarizer for the far-infrared and complete mid-infrared simultaneously. High-frequency limit is extended to typically 5000cm-1 or 2μm. A polarization contrast of Tp/Ts = 10,000 : 1 is reached.
Very high degree of polarization P = (Tp - Ts)/(Tp + Ts) > 99.99%
Thin, compact, rotable
Wide wavelength range > 250μm to 2μm (equivalent to 40 ..... 5000cm-1)
Complete and continuous mid-ir to far-ir-coverage
No substrate - there is no beam deviation and no substrate dependent dispersion
Ideal for 1.2 to 150THz spectroscopy
Standard clear apertures: 13 and 25mm diameter, new: 18.4mm
Application: THz-, fir-, mir-spectroscopy, polarimetry, ellipsometry
The polarizer is mounted in a 50 (33)mm dia. x 14mm thick metal ring. Four 2mm dia. screw holes on a 38 (24)mm dia. circle are provided for mounting.
New: the 18.4mm diameter CA is mounted in 25.4mm diameter ring with 2.5mm thickness
Please see below the typical extinction and transmission spectrum (against linearly polarized light as reference):
High contrast Infrared Polarizer P02
Free-standing grid array polarizer for the far-infrared and mid-infrared. Patented design extends high-frequency limit by one order of magnitude to typically 2500cm-1 or 4μm. A polarization contrast better than Tp/Ts = 10,000 : 1 is reached.
Very high degree of polarization P = (Tp - Ts)/(Tp + Ts) > 99.99%
Thin, compact, rotable
Wide wavelength range > 300μm to 4μm (equivalent to 30 ..... 2500cm-1)
Continuous mid-ir to far-ir-coverage
No substrate - there is no beam deviation and no substrate dependent dispersion
Ideal for 0.9 to 75THz spectroscopy
Standard clear apertures: 25mm, 40mm and 100mm diameter
Application: THz-, fir-, mir-spectroscopy, polarimetry, ellipsometry
The CA 25mm polarizer is mounted in a 34.8mm dia. x 8mm thick metal ring.
Please see below the typical extinction and transmission spectrum (against linearly polarized light as reference):
High contrast Broadbａnd Millimeter-Wave and Far-Infrared Polarizer P01
Highcontrast grid array polarizer for the far-infrared and millimeter-wave region. A polarization contrast better than Tp/Ts = 10,000 : 1 is reached.
Very high degree of polarization P = (Tp - Ts)/(Tp + Ts) > 99.99%
Thin, compact, rotable
Continuous millimeter-wave to far-ir-coverage
No substrate - there is no beam deviation and no substrate dependent dispersion
Wide wavelength range > 2.5mm to 12μm (equivalent to 4 ....... 800cm-1 or 120GHz ....... 24THz)
Standard clear apertures: 25mm, 40mm and 100mm diameter
Application: THz-, fir-, mir-spectroscopy, polarimetry, ellipsometry
The CA 25mm polarizer is mounted in a 34.8mm dia. x 8mm thick metal ring.
Please see below the typical extinction and transmission spectrum (against linearly polarized light as reference):
