Insight Product Company offers ultrafast superconducting hot-electron bolometers (HEBs) operating at terahertz frequency range. from 0.1 to 70 THz.
Superconducting hot electron bolometers HEBs are designed to detect and register the electromagnetic radiation pulses in the frequency range from 0.1 THz to 70 THz.
 

Technical data for HEB Detectors

Type of detector	1	2	3	4	5	6
Operating frequency range	0.3-3 THz	25-70 THz	0.3-3 THz	25-70 THz	0.1-30 THz	0.1-30 THz
Noise Equivalent Power NEP	3-5*10^-13 W*HZ^-0.5	4-5*10^12 W*HZ^-0.5	5-7*10^-14 W*HZ^-0.5	1-2*10^-12 W*HZ^-0.5	1-2*10^-10 W*HZ^-0.5	6-8*10^-11 W*HZ^-0.5
Response Time	50 ps	50 ps	1 ns	1 ns	50 ps	1 ns
Maximum power handling capacity	100 uW	1 mW	10 uW	1 mW	100 mW	100 mW
Upper level of the dynamic range (3dB compression point)	1 uW	10 uW	1 uW	10 uW	1 mW	1 mW
Bandwidth of cold (LHe temp.) HEMT amplifier	50 MHz - 1 GHz or 1-2 GHz or 1-4 GHz	50 MHz -1 GHz or 1-2 GHz or1-4 GHz	10-100 MHz	10-100 MHz	50 MHz -1 GHz or 1-2 GHz or 1-4 GHz	10-100 MHz
Total gain (including room temperature amplifying)	65-70 dB	65-70 dB	65-70 dB	65-70 dB	65-70 dB	65-70 dB
Cold filter and window of the LHe cryostat	Black PE filtering and HDPE window	High Resistivity Germanium window	Black PE filtering and HDPE window	High Resistivity Germanium window	High Resistivity Silicon window	High Resistivity Silicon window
Antenna type	Silicon hyperhemi-spherical lens and log periodic spiral antenna	Germanium hyperhemi-spherical lens	Silicon hyperhemi-spherical lens and log periodic spiral antenna	Germanium hyperhemi-spherical lens	Winston cone	Winston cone
Superconducting material of the sensitive element	NbN	NbN	Nb	Nb	NbN	Nb

Liquid helium Cryostat characteristics

Type of cryostat	1	2	3
Volume of liquid helium	0.5 liters	0.8 liters	2.0 liters
liquid helium hold time	more than 5 hours	more than 5 hours	more than 5 hours
Input optical window diameter	12 mm	20 mm	40 mm
Weight	5 kg	6.5 kg	18 kg
Height	360 mm	380 mm	490 mm
Diameter	150 mm	160 mm	260 mm
Temperature on the cold plate	4.2 K	4.2 K	4.2 K
Output signal connector type	SMA-50 Ohm	SMA-50 Ohm	SMA-50 Ohm

The detector can be equipped by 3-4 Kelvin closed cycle refrigerator system instead of LHe cryostat.
Closed cycle refrigerator system must fit the following requirements:
1. Refrigeration Capacity – not less than 0.4 W @ 4.2 K
2. Sample volume dimensions – diameter 100 mm and 50 mm height
3. Optical window diameter – not less than 15 mm

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