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NB685040-24-02811 6695/ 334516 Title:? Carbon Nanotube-coated Pyroelectric Sensors BACKGROUND The National Institute of Standards and Technology (NIST) requires three (3) low-noise, temperature-contro... NB685040-24-02811 6695/ 334516 Title:? Carbon Nanotube-coated Pyroelectric Sensors BACKGROUND The National Institute of Standards and Technology (NIST) requires three (3) low-noise, temperature-controlled carbon nanotube-coated pyroelectric sensors and associated electronic controllers to be used for low-level diffuse laser power measurement. Specifically, these pyroelectric sensors are to be used for transferring measurement scales of diffuse irradiance within and between the NIST Low Background Infrared Radiometry (LBIR) facility and the Spectral Irradiance and Radiance responsivity using Uniform Sources (SIRCUS) facility between standards operating at different power levels and wavelengths. In order for NIST to include all sources of uncertainty in these calibration transfers, NIST also requires that the sensors are designed to provide routine hemispherical access to the black-coated pyroelectric element to enable NIST to make hemispherical diffuse reflectance measurements to check for possible errors sources in the transferred optical power calibration scales. NIST has a need for low noise, temperature-controlled carbon nanotube-coated pyroelectric sensors and associated electronic controllers that meet or exceed the following draft minimum specifications: Contract Line Item Number (CLIN) 0001: Description: The Contractor shall provide a low-noise, temperature-controlled carbon nanotube-coated pyroelectric sensors and associated electronic controllers. Quantity: Three (3) Technical Specifications: The pyroelectric sensor shall operate over a spectral range from 200 nm to 18,000 nm. The pyroelectric sensor shall have a circular active sensor area of 5 mm diameter. There shall be no entrance window in front of the pyroelectric sensor: The first surface that incident light intersects shall be the black coating of the pyroelectric sensor active area itself. The field of view of the active sensor area shall be 180 degrees to enable measurement of the hemispherical reflectance of the sensor active area by the user. That is, the housing for the pyroelectric sensor (when front baffle is removed) shall enable incident light rays from the full hemisphere in front of the sensor to reach the sensor active area without obstruction. This requirement can be met by using a removable front baffle from the sensor package, but in such case the housing shall be designed so that the user can repeatably remove the front baffle and re-install it repeatably during the life of the sensor without damaging the sensor. The pyroelectric sensor shall have a Noise Equivalent Power less than 6 nW/(Hz)^1/2 at 5 Hz Each pyroelectric sensor shall include an independent, dedicated, transimpedance preamplifier. The pyroelectric sensor shall have sensitivity larger than 1 kV/W (root-mean-square) at the output of the transimpedance amplifier. The maximum measurable power shall be in the range 0.5 mW to 1 mW. The output signal rise time shall be less than 0.2 second. The upper roll-off frequency shall be more than 100 Hz upper roll-off frequency. Operating optical chopping frequency shall be from 5 Hz to 10 Hz. The front light-absorbing surface of the pyroelectric sensor element shall be coated with a black carbon nanotube coating/paint that has been shown in the past to provide directional-hemispherical reflectance below 1 % over the entire spectral range from 850 nm to 2,500 nm, and below 2.5 % over the entire spectral range from 2,500 nm to 18,000 nm. As part of the quotation, to be used by NIST in the evaluation process, the vendor shall provide directional reflectance data showing that the chosen coating has been able to meet this specification when applied to other pyroelectric detectors. Voltage response instability shall be lower than ±0.01 %. Each pyroelectric sensor shall include an electronic temperature controller capable of maintaining the pyroelectric sensor temperature constant in the range from 20°C to 30°C with instability lower than ±0.05 °C, and a power supply that runs off standard 110 volt alternating current. The temperature controller/power supply shall be interchangeable between the pyroelectric sensors described above. HOW TO RESPOND TO THIS NOTICE In responding to this notice, please DO NOT PROVIDE PROPRIETARY INFORMATION. Please include only the following information, readable in either Microsoft Word 365, Microsoft Excel 365, or .pdf format, in the response. Submit the response by email to the Primary Point of Contact and, if specified, to the Secondary Point of Contact listed at the bottom of this notice as soon as possible, and preferably before the closing date and time of this notice. Provide the complete name of your company, address, name of contact for follow-up questions, their email, their phone number and, if your company has an active registration in https://sam.gov, your company’s Unique Entity ID (UEI). Details about what your company is capable of providing that meets or exceeds NIST’s minimum requirements. Whether your company is an authorized reseller of the product or service being cited and evidence of such authorization. Identify any aspects of the description of the requirements in the BACKGROUND section above that could be viewed as unduly restrictive or create unnecessary barriers that adversely affect your firm’s ability to fully participate in a procurement for such services and explain why. Please offer suggestions for how the requirements could be organized or structured to encourage the participation of small businesses. For the NAICS code Indicate whether your company is (a) a small business or (b) other than small business. See the Table of Small Business Size Standards and the associated .pdf download file for small business size standards and additional information. If you believe the NAICS code listed in this notice is not the best NAICS code for the type of product addressed in this notice, identify an alternative NAICS code that you believe would be more appropriate for the planned procurement. If your firm has existing Federal Supply Schedule contract(s) or other contracts for products or services against which the Department may be able to place orders, identify the contract number(s) and other relevant information. Describe your firm’s experience (as a prime, subcontractor, or consultant) providing the products or services described in Background section. Provide any other information that you believe would be valuable for the Government to know as part of its market research for this requirement. Please let us know if you would like to engage to get a better understanding of the requirement or need additional information about the Government’s requirement for the products or services described in the Background section. QUESTIONS REGARDING THIS NOTICE Questions regarding this notice may be submitted via email to the Primary Point of Contact and the Secondary Point of Contact listed in this notice. Questions should be submitted so that they are received by 9:00 a.m. Eastern Time on August 5, 2024. 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. This notice should not be construed as a commitment by the NIST to issue a solicitation or ultimately award a contract. This notice is not a request for a quotation. Responses will not be considered as proposals or quotations. No award will be made as a result of this notice. NIST is not responsible for any costs incurred by the respondents to this notice. NIST reserves the right to use information provided by respondents for any purpose deemed necessary and appropriate. Thank you for taking the time to submit a response to this request.