Protemics TeraSpike太赫兹微探针 microprobes
Protemics TeraSpike太赫兹微探针 microprobes
Protemics TeraSpike太赫兹微探针 microprobes
Protemics TeraSpike microprobe series
Photoconductive THz devices
The microprobe series TeraSpike is the new generation of high-performance microprobes for the photo-conductive detection of electric fields in the THz frequency range. Surface-near electric THz fields can now be measured with unprecedented signal quality and low invasiveness. The microprobes seamlessly fit into systems with optical excitation wavelengths below 860 nm and are the most cost-efficient solution to turn an existing time-domain pump/probe-system into a powerful THz near-field system for high-resolution imaging.
Protemics TeraSpike微探针系列是新一代高性能微探针，用于太赫兹频率范围内的光电导电场检测。表面近电太赫兹场现在可以以前所未有的信号质量和低侵入性进行测量。微探针无缝地适应光学激发波长低于860nm的系统，是将现有时域泵浦/探针系统转变为用于高分辨率成像的太赫兹近场系统的低成本高效益的解决方案。
Protemics产品咨询：185 0219 3480
Key features主要特点
Smallest active THz probe-tip on the market
Patented design
Spatial resolution up to 3 µm
Frequency range 0-4 THz
Adaptable to all laser-based THz-Systems with λ < 860 nm
Mounting compatible with standard opto-mechanical components
Typical optical excitation power 1-5 mW (1-5 µJ/cm²)
Integrated overvoltage protection circuit
Models型号描述
In addition to custom-specific microprobes the following standard models are offered for pulsed excitation:
Electrical connection is done through a compact coaxial SMP plug. We recommend the use of a low-noise current amplifier with 107-108 V/A amplification (e.g. DLPCA200) and high-grade connection cables (e.g. our TS Cable) for optimum operation.
TeraSpike TD-800-X
Microprobe cantilever design:
Technical specifications:
| Type | HR | HRS |
| Max. spatial resolution | 3 µm | 20 µm |
| Photo-switch gap size | 1.5 µm | 2 µm |
| Dark current @ 1 V Bias | < 0.5 nA | < 0.5 nA |
| Photocurrent @ 1 V Bias | >0.2 µA | > 0.2 μA |
| Excitation wavelength | 700 .. 860 nm | 700 .. 860 nm |
| Average excitation power | 0.1 .. 4 mW | 0.1 .. 4 mW |
| Connection type | SMP | SMP |
X-series microprobes are sensitive to THz field components oriented in transversal direction to the probe-tip axis as defined by the x-axis direction in the upper illustration. The HR-option does not include a resonant antenna element and provides a somewhat higher bandwidth. The HRS-option includes an antenna element for enhanced sensitivity around 1 THz.
TeraSpike microprobe series
TeraSpike TD-1550-X
Microprobe cantilever design:
The microprobes from the new 1550-X-series are our first probes which can be directly sampled by telecom-wavelength (1500 .. 1600 nm) laser pulses. They are sensitive to electric vector field-components oriented in transversal direction to the probe-tip axis as defined by the x-axis direction in the upper illustration. The model TD-1550-X-HR-WT offers good spatial resolution and clean spectral response due to our patent-pending internal absorber ("wave-trap") structures. The model TD-1550-X-HR-WT-XR provides increased mechanical robustness with only moderate loss of spatial resolution and sensitivity. It is designed for rougher applications e.g. where the sample distance is more difficult to control.
Technical specifications:
| Type | -HR-WT | -HR-WT-XR |
| Max. spatial resolution | 40 µm (20 µm(#)) | 80 µm |
| Photo-switch gap size | 1.5 µm | 1.5 µm |
| Dark current @ 1 V Bias | < 4.5 µA | < 4.5 µA |
| Photocurrent @ 1 V Bias | > 12 µA (*) | > 12 µA (*) |
| Excitation wavelength | 1500 .. 1600 nm | |
| Average excitation power | 1.5 .. 3.5 mW | |
| Connection type | SMP | |
(*) For a focus diameter of circa 20 µm, bias voltage 1 V , average optical excitation power 3 mW.
(#) For front-switch instead of main-switch excitation. Front-switch excitation mode is showing reduced SNR.
Tip designs
The WT-option is currently available for the following x- and z-field sensitive TeraSpike probes:
TeraSpike TD-800-X-HR-WT
TeraSpike TD-800-Z-WT
TeraSpike TD-800-X-HR-WT-XR
TeraSpike TD-800-Z-WT-XR
如果需要TeraSpike任何产品，联系我们。
TeraBlast - Bias-free Large-area Emitters
Technical specifications:
| Type | TeraBlast TD-1550-L-165 | ||
| Excitation wavelength range | 700 .. 1600 nm | ||
| Typ. average excitation power range | 5 mW .. 1000 mW | ||
| Average THz emission power | > 2.5 µW (a) | ||
| Active area diameter | ca. 10 mm (b) | ||
| Adapter dimension (Outer diameter) | 1/2 inch | ||
Options:
Anti-reflection coating (-AR)
GigaSpike E-field-probe series
Schottky-diode-based active 3D near-field detection
Standard models | Frequency range | |
| GS-28-XYZ | 25 .. 32 GHz | |
| GS-60-XYZ | 56 .. 70 GHz | |
| GS-285-X | 250 .. 330 GHz | |
GigaSpike GS-60-XYZ
TeraCube Scientific
Technical Specifications
| Type | TeraCube Scientific | TeraCube Scientific M2 |
| Spectral range | 0.05 - 3 THz | 0.05 - 4 THz |
| Maximum sample size (x, y, z) | 20 cm, 20 cm, 1 cm | |
| Maximum scanning speed (x, y) | up to 100 mm/s | |
| Min. scanning time per pixel | 10 ms / Single TD position | 10 ms / Full TD Transient (5ps) |
| Maximum scanning range (x, y, z) | 18 cm, 18 cm, 3 mm | |
| Time-domain scanning range width | 1000 ps | 5 .. 200 ps |
| Time-domain step resolution (dt) | 6.6 fs | 50 fs |
| Min. bi-directional repeatability (x, y, z) | +-0.1 µm, +-0.1 µm, +-0.15 µm | |
| Min. step resolution (dx, dy, dz) | 0.1 µm, 0.1 µm, 0.15 µm | |
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