特點:
紅外光譜測量值可達3.5μm
緊湊
分辨率0.5nm
USB接口
自由空間和光纖耦合FC輸入
產品概述:
ASP-IR有掃描裝置,可以測量紅外波長范圍,不使用昂貴的CCD陣列。這在紅外光譜儀市場上,非常有價格優勢。ASP-IR性能優異,能夠在整個波長范圍內,提供準確的激光輻射分析,分辨率0.35nm。
ASP-IRF專用光纖輸入,可以測量8個自由空間或光纖信號,無需重新對準。
可訂購波長范圍達3800nm。
ASP-IR-1.7 | ASP-IR-2.6 | ASP-IR-3.5 | |
Spectral range, nm | 500-1700 | 900-2600 | 1200-3450 |
Grating, grooves/mm | 600 | 400 | 400 |
Scanning speed, nm/s | up to 300 | up to 400 | up to 400 |
Spectral resolution, nm (free-space) | 0.5 | 0.8 | 1.2 |
Spectral resolution*, nm (given for 400 um fiber core) | 0.7 | 1.0 | 1.5 |
Optical scheme | Czerny-Turner | ||
Input type(1) | free-space and FC fiber socket (fiber patch-cord on request) | ||
Focal length, mm | 150 | ||
Input slit, um | 15 | ||
Output slit, um | 20 | ||
Relative aperture | 1:13 | ||
Photodetector | InGaAs photodiode | InAs PV cooled detector | |
Source pulse repetition rate, kHz | any(2) | ||
Detector active area height, mm | 1 | ||
NEP [NEE]*(2...4), nW [pJ] | 0.6 [0.15] | 42 [2.5] | 145 [7] |
Relative dynamic range*(3) | 3 [1.5] x105 | 7 [1] x105 | 6 [1.5] x104 |
ADC | 16 bit, 65536 counts | ||
PC connection | USB | ||
Dimensions (L x W x H), mm | 225x136x81 | 295x136x81 | |
Weight, kg | 2.9 | 3.6 | |
(1) – each spectrometer is equipped with a fiber socket and allows measurement of either free-space or fiber signals without any realignment (2) – all spectrometers have two operational modes: CW (repetition rate from CW down to 6 kHz) and pulsed (up to 8 kHz for ASP-IR-1.7 and up to 25 kHz for ASP-IR-2.6 and ASP-IR-3.5); the pulsed mode has external trigger feature (3) – dynamic range for pulsed mode given in brackets (4) – NEP - noise equivalent power and NEE - noise equivalent energy are given at input beam diameter ~ 2 mm at peak sensitivity wavelength (ASP-IR-1.7 – 1.5 um, ASP-IR-2.6 – 2.3 um, ASP-IR-3.5 – 3.25 um) * - typical values. |