Our cryogen-free bolometers are designed for unattended, continuous cold operation.<\/span><\/h4>\n<\/div><\/div><\/div>![\"Cryogen-Bolometer](\"https:\/\/www.irlabs.com\/wp-content\/uploads\/2020\/09\/IRLabs-BB-System-e1601317041226.png\")
<\/div><\/div><\/div>![\"Closed](\"https:\/\/www.irlabs.com\/wp-content\/uploads\/2020\/09\/closed-cycle-bolometers.jpg\")
<\/div><\/div><\/div>![\"Cryogen-gree](\"https:\/\/www.irlabs.com\/wp-content\/uploads\/2021\/08\/Cryo-free-bolometer-top-1.jpg\")
<\/div><\/div><\/div><\/div><\/i><\/div><\/i><\/div><\/div><\/div><\/div><\/div><\/div>Benefits<\/h2><\/div>- <\/i><\/span>\n
No unexpected warmups and no need for expensive liquid helium<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Interfaces to major spectrometers<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Ultra low vibration<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Noise and sensitivity on par with wet systems<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Water or air cooled compressor<\/p>\n<\/div><\/li><\/ul><\/div><\/div><\/div><\/div>
Specifications<\/h2>\n<\/div>\n\n\n\n\n <\/b>Bolometers<\/b><\/th>\n \nSpectral Response (<\/b>\u00b5m)<\/b><\/p>\n<\/th>\n
Operating Temp
\n(K)<\/b><\/th>\n Electrical Sensitivity (S[V\/W])<\/b><\/th>\n Noise Equivalent Power
\n<\/b>[W\/Hz(1\/2)]<\/strong><\/th>\nNoise
\n<\/b>Vn[nV\/Hz(1\/2)]<\/strong><\/th>\nFrequency Response<\/strong>
\n(Optimum Chopping Frequency)<\/span><\/th>\n<\/tr>\n<\/thead>\n\n\nGeneral Purpose 4.2 K Bolometer System<\/td>\n \n15 – 2000<\/p>\n<\/td>\n
operation to 4.2<\/td>\n ~ 2.4 X 105<\/sup><\/td>\n~ 2.5 X 10-13<\/sup><\/td>\n\u2264 80 at 80Hz<\/td>\n < 500 Hz<\/td>\n<\/tr>\n \nHi Res 4.2K Bolometer System<\/td>\n \n15 – 500<\/p>\n<\/td>\n
operation to 4.2<\/td>\n ~ 6.1 X 105<\/sup><\/td>\n~ 6.5 X 10-14<\/sup><\/td>\n\u2264 40 at 80Hz<\/td>\n < 200 Hz<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div><\/div>System Configuration<\/h3><\/div>- <\/i><\/span>\n
Three positions filter wheel or single fixed filter option<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Standard 4.2K bolometer filter configuration
\n\u2022 13\u00b5m IR long pass filter
\n\u2022 103\u00b5m IR long pass filter
\n\u2022 285\u00b5m IR long pass filter<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Other filter options available upon request<\/p>\n<\/div><\/li><\/ul><\/div><\/div>
System Performance<\/h3><\/div>- <\/i><\/span>\n
Cool down time: 6.5 hours (under 60Hz operation)<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
15\u00b5m-2000\u00b5m spectral range w\/ HDWP window<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Increase in noise over LHe system (6%) Drop in sensitivity over LHe system (2%)<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Temperature sensor installed on cold plate for accurate temperature read-out<\/p>\n<\/div><\/li><\/ul><\/div><\/div><\/div><\/div>
<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>Benefits<\/h2><\/div>- <\/i><\/span>\n
No unexpected warmups and no need for expensive liquid helium<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Interfaces to major spectrometers<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Ultra low vibration<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Noise and sensitivity on par with wet systems<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Water or air cooled compressor<\/p>\n<\/div><\/li><\/ul><\/div><\/div><\/div><\/div>
Specifications<\/h2>\n<\/div>\n\n\n\n\n <\/b>Bolometers<\/b><\/th>\n \nSpectral Response (<\/b>\u00b5m)<\/b><\/p>\n<\/th>\n
Operating Temp
\n(K)<\/b><\/th>\n Electrical Sensitivity (S[V\/W])<\/b><\/th>\n Noise Equivalent Power
\n<\/b>[W\/Hz(1\/2)]<\/strong><\/th>\nNoise
\n<\/b>Vn[nV\/Hz(1\/2)]<\/strong><\/th>\nFrequency Response<\/strong>
\n(Optimum Chopping Frequency)<\/span><\/th>\n<\/tr>\n<\/thead>\n\n\nGeneral Purpose 4.2 K Bolometer System<\/td>\n \n15 – 2000<\/p>\n<\/td>\n
operation to 4.2<\/td>\n ~ 2.4 X 105<\/sup><\/td>\n~ 2.5 X 10-13<\/sup><\/td>\n\u2264 80 at 80Hz<\/td>\n < 500 Hz<\/td>\n<\/tr>\n \nHi Res 4.2K Bolometer System<\/td>\n \n15 – 500<\/p>\n<\/td>\n
operation to 4.2<\/td>\n ~ 6.1 X 105<\/sup><\/td>\n~ 6.5 X 10-14<\/sup><\/td>\n\u2264 40 at 80Hz<\/td>\n < 200 Hz<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div><\/div>System Configuration<\/h3><\/div>- <\/i><\/span>\n
Three positions filter wheel or single fixed filter option<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Standard 4.2K bolometer filter configuration
\n\u2022 13\u00b5m IR long pass filter
\n\u2022 103\u00b5m IR long pass filter
\n\u2022 285\u00b5m IR long pass filter<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Other filter options available upon request<\/p>\n<\/div><\/li><\/ul><\/div><\/div>
System Performance<\/h3><\/div>- <\/i><\/span>\n
Cool down time: 6.5 hours (under 60Hz operation)<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
15\u00b5m-2000\u00b5m spectral range w\/ HDWP window<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Increase in noise over LHe system (6%) Drop in sensitivity over LHe system (2%)<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Temperature sensor installed on cold plate for accurate temperature read-out<\/p>\n<\/div><\/li><\/ul><\/div><\/div><\/div><\/div>
No unexpected warmups and no need for expensive liquid helium<\/p>\n<\/div><\/li>
Interfaces to major spectrometers<\/p>\n<\/div><\/li>
Ultra low vibration<\/p>\n<\/div><\/li>
Noise and sensitivity on par with wet systems<\/p>\n<\/div><\/li>
Water or air cooled compressor<\/p>\n<\/div><\/li><\/ul><\/div><\/div><\/div><\/div>
Specifications<\/h2>\n<\/div>\n\n\n\n\n <\/b>Bolometers<\/b><\/th>\n \nSpectral Response (<\/b>\u00b5m)<\/b><\/p>\n<\/th>\n
Operating Temp
\n(K)<\/b><\/th>\n Electrical Sensitivity (S[V\/W])<\/b><\/th>\n Noise Equivalent Power
\n<\/b>[W\/Hz(1\/2)]<\/strong><\/th>\nNoise
\n<\/b>Vn[nV\/Hz(1\/2)]<\/strong><\/th>\nFrequency Response<\/strong>
\n(Optimum Chopping Frequency)<\/span><\/th>\n<\/tr>\n<\/thead>\n\n\nGeneral Purpose 4.2 K Bolometer System<\/td>\n \n15 – 2000<\/p>\n<\/td>\n
operation to 4.2<\/td>\n ~ 2.4 X 105<\/sup><\/td>\n~ 2.5 X 10-13<\/sup><\/td>\n\u2264 80 at 80Hz<\/td>\n < 500 Hz<\/td>\n<\/tr>\n \nHi Res 4.2K Bolometer System<\/td>\n \n15 – 500<\/p>\n<\/td>\n
operation to 4.2<\/td>\n ~ 6.1 X 105<\/sup><\/td>\n~ 6.5 X 10-14<\/sup><\/td>\n\u2264 40 at 80Hz<\/td>\n < 200 Hz<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div><\/div>System Configuration<\/h3><\/div>- <\/i><\/span>\n
Three positions filter wheel or single fixed filter option<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Standard 4.2K bolometer filter configuration
\n\u2022 13\u00b5m IR long pass filter
\n\u2022 103\u00b5m IR long pass filter
\n\u2022 285\u00b5m IR long pass filter<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Other filter options available upon request<\/p>\n<\/div><\/li><\/ul><\/div><\/div>
System Performance<\/h3><\/div>- <\/i><\/span>\n
Cool down time: 6.5 hours (under 60Hz operation)<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
15\u00b5m-2000\u00b5m spectral range w\/ HDWP window<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Increase in noise over LHe system (6%) Drop in sensitivity over LHe system (2%)<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Temperature sensor installed on cold plate for accurate temperature read-out<\/p>\n<\/div><\/li><\/ul><\/div><\/div><\/div><\/div>
| <\/b>Bolometers<\/b><\/th>\n | \n Spectral Response (<\/b>\u00b5m)<\/b><\/p>\n<\/th>\n | Operating Temp \n(K)<\/b><\/th>\n | Electrical Sensitivity (S[V\/W])<\/b><\/th>\n | Noise Equivalent Power \n<\/b>[W\/Hz(1\/2)]<\/strong><\/th>\n Noise | \n<\/b>Vn[nV\/Hz(1\/2)]<\/strong><\/th>\n Frequency Response<\/strong> | \n(Optimum Chopping Frequency)<\/span><\/th>\n<\/tr>\n<\/thead>\n\n General Purpose 4.2 K Bolometer System<\/td>\n | \n | 15 – 2000<\/p>\n<\/td>\n operation to 4.2<\/td>\n | ~ 2.4 X 105<\/sup><\/td>\n | ~ 2.5 X 10-13<\/sup><\/td>\n | \u2264 80 at 80Hz<\/td>\n | < 500 Hz<\/td>\n<\/tr>\n | Hi Res 4.2K Bolometer System<\/td>\n | \n | 15 – 500<\/p>\n<\/td>\n operation to 4.2<\/td>\n | ~ 6.1 X 105<\/sup><\/td>\n | ~ 6.5 X 10-14<\/sup><\/td>\n | \u2264 40 at 80Hz<\/td>\n | < 200 Hz<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div><\/div> | System Configuration<\/h3><\/div>\n Three positions filter wheel or single fixed filter option<\/p>\n<\/div><\/li> \n Standard 4.2K bolometer filter configuration \n Other filter options available upon request<\/p>\n<\/div><\/li><\/ul><\/div><\/div> System Performance<\/h3><\/div>\n Cool down time: 6.5 hours (under 60Hz operation)<\/p>\n<\/div><\/li> \n 15\u00b5m-2000\u00b5m spectral range w\/ HDWP window<\/p>\n<\/div><\/li> \n Increase in noise over LHe system (6%) Drop in sensitivity over LHe system (2%)<\/p>\n<\/div><\/li> \n Temperature sensor installed on cold plate for accurate temperature read-out<\/p>\n<\/div><\/li><\/ul><\/div><\/div><\/div><\/div> |
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