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05B20UF.20 Ultrafast Pump Mirror, High Reflecting, 12.7 mm, Flat, 710-890 nm |
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10B20UF.20 Ultrafast Pump Mirror, High Reflecting, 25.4 mm, Flat, 710-890 nm |
In Stock
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$430 |
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| Wavelength Range | 710-890 nm | 710-890 nm | |
| Angle of Incidence | 0-15° | 0-15° | |
| Coating Code |
Front: UF.20 Back: AR.14 |
Front: UF.20 Back: AR.14 |
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| Reflectivity |
UF.20: Rs, Rp >99% @ 710–890 nm AR.14: Ts, Tp >99% @ 430–700 nm |
UF.20: Rs, Rp >99% @ 710–890 nm AR.14: Ts, Tp >99% @ 430–700 nm |
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| Material | N-BK7 | N-BK7 | |
| Mirror Shape | Round | Round | |
| Surface Quality | 15-5 scratch-dig | 15-5 scratch-dig | |
| Surface Flatness | λ/10 at 632.8 nm | λ/10 at 632.8 nm | |
| Back Surface | λ/10 at 632.8 nm | λ/10 at 632.8 nm | |
| Thickness | 9.65 mm | 6.0 mm | |
| Thickness Tolerance | ±0.25 mm | ±0.38 mm | |
| Diameter | 12.7 mm | 25.4 mm | |
| Diameter Tolerance | +0/-0.13 mm | +0/-0.13 mm | |
| Wedge | 30 ±15 arc min | 30 ±15 arc min | |
| Clear Aperture | ≥ central 80% of diameter | ≥ central 80% of diameter | |
| Chamfers | 0.25-0.76 mm face width | 0.25-0.76 mm face width | |
| Chamfers Angle Tolerance | 45° ±15° | 45° ±15° | |
| Cleaning | See How to Clean Optics | See How to Clean Optics |
The High Reflecting Pump Mirrors for Ultrashort Pulses have over 99% reflectance from 710-890 nm for both s- and p-polarization. This enables maximum efficiency for peak power sensitive ultrafast laser applications. Mirrors are optimized for 0-15° AOI.
The back surface of the pump mirrors has an AR coating optimized for transmission from 488-532 nm. This enables 488 and 514 nm argon laser, or 532nm frequency double Nd:YAG pump beams to transmit effectively.
Our ultrafast laser pump mirrors feature BK-7 substrates. The mirrors have surface flatness better than λ/10, and surface quality of 15-5 scratch-dig.
In Transient Absorption Spectroscopy, a specimen is illuminated with a broad supercontinuum source (typically routed using ultrafast reflective optics to minimize overall chirp). The sample is intermittently excited using an pump beam. Dynamics of a material can be studied by analyzing transmitted frequency using a spectrometer.
Our ultrafast mirrors may be used as dichroic mirrors in pump probe laser applications. The mirrors have a 30 arc minute wedge angle to suppress interference fringes for the transmitted beam. Note that performance outside of the specified wavelength range cannot be guaranteed.
N-BK7 is a relatively hard Borosilicate glass that offers good scratch resistance with a very low level of inclusions. For more information, refer to the optical material technical note.
Ultra-High Velocity