Notice2025-05391
Massachusetts Institute of Technology, et al.; Notice of Decision on Application for Duty-Free Entry of Scientific Instruments
Primary source
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Published
March 28, 2025
Issuing agencies
Commerce DepartmentInternational Trade Administration
Full Text
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<title>Federal Register, Volume 90 Issue 59 (Friday, March 28, 2025)</title>
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[Federal Register Volume 90, Number 59 (Friday, March 28, 2025)]
[Notices]
[Page 14073]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2025-05391]
[[Page 14073]]
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DEPARTMENT OF COMMERCE
International Trade Administration
Massachusetts Institute of Technology, et al.; Notice of Decision
on Application for Duty-Free Entry of Scientific Instruments
This is a decision pursuant to section 6(c) of the Educational,
Scientific, and Cultural Materials Importation Act of 1966 (Pub. L. 89-
651, as amended by Pub. L. 106-36; 80 Stat. 897; 15 CFR part 301). On
October 29, 2024, the Department of Commerce published a notice in the
Federal Register requesting public comment on whether instruments of
equivalent scientific value, for the purposes for which the instruments
identified in the docket(s) below are intended to be used, are being
manufactured in the United States. See ``Application(s) for Duty-Free
Entry of Scientific Instruments'', 89 FR 85942-43, October 29, 2024
(Notice). We received no public comments.
Comments: None received. Decision: Approved. We know of no
instrument of equivalent scientific value to the foreign instrument
described below, for such purposes as this is intended to be used, that
was being manufactured in the United States at the time of order.
Docket Number: 24-026. Applicant: Massachusetts Institute of
Technology, 77 Massachusetts Avenue, Cambridge, MA 02139. Instrument:
Narrow linewidth laser, FL-SF-1695-0.5.-CW. Manufacturer: Shanghai
Precilaser Technology, Co., Ltd., China. Intended Use: The instrument
will be used as a single frequency laser system at 1695 nm that will be
used in quantum physics experiments at MIT for improved optical atomic
clocks and precision measurement using ytterbium (\171\Yb). The 1695 nm
frequency is the Yb optical transition between the ground state
4f\14\6s6p\3\P<INF>0</INF> and the metastable state 4f\13\6s\2\5d(J =
2), where J represents the total angular momentum. This transition
allows the possibility of dual-mode optical lattice clocks to further
reduce the uncertainty from external level shifts, as well as physics
beyond the standard model (for example investigating a potential
mediating particle for forces between electron and neutron).
Docket Number: 24-027. Applicant: Massachusetts Institute of
Technology, 77 Massachusetts Avenue, Cambridge, MA 02114. Instrument:
Low noise laser system. Manufacturer: Shanghai Precilasers Technology
Co., Ltd., China. Intended Use: The instrument is intended to be used
for Sodium potassium molecules confined in optical dipole traps. Sodium
potassium molecules are fermionic molecules possessing large electric
dipole moment. Clouds of sodium-23 and potassium-40 atoms are first
laser-cooled into suitable ultracold temperatures and loaded into
optical dipole traps. A two-photon Raman process using the laser system
to be imported then binds pairs of sodium-23 and potassium-40 atoms
into deeply bound molecules in their absolute ground state. Direct
control of quantum states of molecules is difficult owing to the
structural complexity of molecules. Binding molecules from laser-cooled
and well-controlled atoms provides a more feasible alternative to
controlling and manipulating quantum states of molecules.
Docket Number: 24-029. Applicant: Harvard University, 1033
Massachusetts Avenue, Cambridge, MA 02138. Instrument: Narrow Line-
width laser. Manufacturer: Shanghai Precilasers Technology Co., Ltd.,
China. Intended Use: The narrow linewidth (<2kHz), ultralow noise
(intensity and phase), large tuning range (>1nm) seed laser at 1591 nm
will be used as a seed to be doubled down to 795 nm. The seed laser
will be used in a quantum physics experiment at Harvard for laser
cooling and trapping experiments for Rubidium atoms to explore quantum
physics research. The research work enabled by this system is part of
the training of graduate students, undergraduate students, and
postdoctoral research fellows.
Docket Number: 24-030. Applicant: University of Michigan, Naval
Architecture and Marine Engineering, West Hall Rm. 126, 1085 S
University Avenue, Ann Arbor, MI 48109. Instrument: Wave Generator
System. Manufacturer: Van Halteren Technologies Boxtel BV, Netherlands.
Intended Use: The instrument will be used to study ship motions in
water waves. Ship models in fresh water are to be investigated. The
experiments to be conducted will involve the creation of model scale
ocean waves. The objective is an engineering understanding of wave
mechanics and the response of ship metrics.
Docket Number: 24-031. Applicant: University of Chicago, 929 E 57th
Street, GCIS ESB41, Chicago, IL 60637 Instrument: Fiber Laser.
Manufacturer: PreciLasers, China. Intended Use: The instrument is
intended to be used to study the Cold molecular Nuclear Time-Reversal
Experiment (CeNTREX), a collaborative physics experiment between
University of Massachusetts Amherst, Columbia University, Yale
University, University of Chicago, and Argonne National Laboratory. The
goal of the CeNTREX project is to shed light on the reasons for why
there is more matter than antimatter in the Universe through the
measurement of properties of the thallium-205 nucleus.
Docket Number: 24-032. Applicant: University of California, Santa
Barbara, 2509 Broida Hall, Santa Barbara, CA 93106-9530. Instrument:
Low Noise Laser Amplifier. Manufacturer: Shanghai Precilaser Technology
Co., Ltd., China. Intended Use: The instrument is intended to be used
in a cold atom experiment at the University of California, Santa
Barbara, for optical trapping and manipulation of cold lithium-7 atoms.
It will be seeded by 100 nW 1064 laser and will produce 100 W output
power. The low relative intensity noise (RIN) of this laser amplifier
is critical, because the intensity noise contributes a lot to the
stability of the optical traps, and the atom interferometry experiment
is very sensitive to the noise of the optical traps.
Docket Number: 24-033. Applicant: Harvard University, 17 Oxford
Street, Jefferson 158, Cambridge, MA 02138. Instrument: High Power
Single Frequency Fiber Amplifier. Manufacturer: Connet Laser Technology
Co., Ltd., China. Intended Use: The high power (30 W), single frequency
fiber amplifier system 1908 nm will be used in a quantum physics
experiment at Harvard for optical tweezer trapping of rubidium-87
atoms. The available laser power will allow many more of these atoms
(thousands) to be controlled than previously demonstrated (hundreds).
This platform will allow the study of larger quantum systems with
properties and fidelities far exceeding smaller systems.
Dated: March 20, 2025.
Tyler O'Daniel,
Acting Director, Subsidies and Economic Analysts, Enforcement and
Compliance.
[FR Doc. 2025-05391 Filed 3-27-25; 8:45 am]
BILLING CODE 3510-DS-P
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