DUAL WAVELENGTH COATED ULTRA HIGH REFLECTIVITY MIRRORS

NIST-SS26-131

PLEASE NOTE THIS A SOURCES SOUGHT NOTICE ONLY

Title:  Dual Wavelength Coated Ultra High Reflectivity Mirrors

BACKGROUND

The Quantum Measurement Division (QMD) at the National Institute of Standards and Technology (NIST) provides the fundamental basis for the measurement of mass, force, and vibration in the United States by maintaining and modernizing primary standards linked to the International System of Units (SI). The Division performs leading-edge research to develop advanced measurement technologies and provides calibration services that support U.S. industrial productivity and ensure equity in trade. The QMD has a requirement for dual-wavelength high-reflectivity mirrors. These mirrors will be integrated into primary acoustic measurement systems, in support of the Division’s mission to deliver accuracy and traceability of acoustic measurements.

In order to meet the mission indicated above, the Mass and Force Group requires a set of (12) high reflectivity mirrors, operating at the wavelengths 1560 nm and 390 nm.

The minimum requirements are as follows:

Line Item 0001:

Description: Dual-band high-reflectivity mirrors

Quantity: Twelve (12)

1. Technical Specifications:

1. Angle of incidence:                                           0 degrees
2. Reflectivity at 1560 nm:                                     99.97 % +/- 0.005 %
3. Reflectivity at 390 nm:                                      99.97 % +/- 0.005 %
4. Optical losses (scattering, absorption) of beam incident on front surface: 0.015 % or lower
5. Backside AR coating:                                        390 nm + 1560 nm
6. Substrate diameter:                                            7.75 mm
7. Substrate thickness:                                           4mm – 6mm
8. Frontside ROC:                                                 1 m
9. Backside ROC:                                                 Plano, optical polish

HOW TO RESPOND TO THIS NOTICE

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QUESTIONS REGARDING THIS NOTICE

Questions regarding this notice may be submitted via email to the Primary Point of Contact listed in this notice. Questions should be submitted so that they are received by 5:00 p.m. Eastern Time on May 22, 2026.  Questions will be anonymized and answered via sources sought notice amendment following the question submission deadline.

IMPORTANT NOTES

The information received in response to this notice will be reviewed and considered so that the NIST may appropriately solicit for its requirements in the near future. 

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Thank you for taking the time to submit a response to this request.