光电导天线阵列

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IPCA光电导天线阵列(iPCA - interdigital array)

品牌： Batop

型号： IPCA

产品简介
技术文档

IPCA光电导天线阵列(iPCA - interdigital array)

品牌： Batop

型号： IPCA

BATOP不仅提供单带隙天线，还包括整合了微透镜的高能大狭缝交叉天线阵列和整套的太赫兹光谱仪。

IPCA光电导天线阵列

产品特点：

• 高太赫兹输出功率（最高可至280uW）

• 大面积发射/探测

• 高的转换效率~ 10^-4（100µW THz / 1 W optical power）

• 谱宽 0.1 – 3 THz

• 封装有超半球Si透镜和SiO2透镜阵列

IPCA光电导天线阵列 IPCA光电导天线阵列结构

Part No.	Delivery time	l (µm)	g (µm)	w (µm)	Description
iPCA-21-05-300-800-h	1 week	21	05	300	interdigital photoconductive terahertz antenna, resonance frequency 2 THz, gap distance 5 µm, active area 300 µm x 300 µm, optical excitation wavelength λ= 800 nm, with adjusted hyperhemispherical silicon lens, BNC connector
iPCA-21-05-1000-800-h	1 week	21	05	1000	interdigital photoconductive terahertz antenna, resonance frequency 2 THz, gap distance 5 µm, active area 1 mm x 1 mm, optical excitation wavelength λ= 800 nm, with adjusted hyperhemispherical silicon lens, BNC connector

iPCA working principle

An extended gap along the finger electrodes of the iPCA is illuminated by a short pulse laser beam. By using the microlens array only every second gap between the finger structure is excited by the laser. The fill factor of the lens array of 73.5 % ensures, that nearly the total optical laser energy is used for excitation of carriers. Despite of the large emitting area the needed voltage for the carrier excitation is low (< 35 V) because of the small gap of only 5 µm. The coherent excitation of the single emitters located at every microlens spot results in a constructive interference of the radiated THz waves in the far field.

Mounting:

iPCA chip, size 4 mm x 4 mm, thickness 625µm, mounted on 25.4 mm diameter black aluminium mount with prealigned hyperhemispherical silicon lens ∅ 12 mm and prealigned fused silica lens array, size 2 mm x 2 mm, and 1 m coaxial cable (RG 178) with BNC or SMA connector.

IPCA光电导天线阵列实物图片

Part No. example	Description
iPCA-21-05-1000-800-h	interdigital PhotoConductive Antenna
iPCA-21-05-1000-800-h	length l = 21 µm
iPCA-21-05-1000-800-h	gap distance g = 5 µm
iPCA-21-05-1000-800-h	width w = 1000 µm
iPCA-21-05-1000-800-h	laser excitation wavelength λ ~ 800 nm
iPCA-21-05-300-800-h	mounted on a hyperhemispherical Si lens with 12 mm diameter
iPCA-21-05-1000-800-h	mounted on a hyperhemispherical Si lens with 12 mm diameter
	additional options:
iPCA-21-05-1000-800-c	mounted on an collimating aspheric Si substrate lens with 12 mm diameter download THz beam guiding information
iPCA-21-05-1000-800-a	mounted on an aspheric focusing Si lens with 12 mm diameter download THz beam guiding information
iPCA-21-05-1000-800-h-f	fiber coupled antenna with FC/PC connector

光电导天线阵列

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太赫兹光电导天线

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