-Salient Characteristics Redacted-.pdf

Salient Characteristics

The Army Research Lab (ARL) Quantum Science Branch (ARL-FCDD-RLA-PD) requires a low-temperature (cryogenic) nano-positioning actuator system for basic science research (6.1) related to control of atomic ions including Ytterbium-I. The need is satisfied by one (1) piezoelectric-actuated translation stages with x-y motion and one

(1) vibration isolation stage for y-motion. The translation stages shall support both stepping and scanning motion. The Contractor shall provide the following required characteristics:

The requirements for one (1) x-y motion stage system are as follows:

● In the specification that follows, we use a coordinate system where the force due to gravity is along the y-axis.

● In the specification that follows, the required performance condition is 4 Kelvin

(K) unless stated otherwise.

● translation:

○ load bearing capacity parallel to displacement axis: > 2 Newton (N)

○ load bearing capacity normal to displacement axis: > 10,000 N

○ first-resonance along the displacement axis: > 500 Hertz (Hz), unloaded

● maximum dimensions: The stages used to implement x- and y-direction motion shall have an extent along the translation direction < 14 millimeter (mm) and an extent in the other two directions < 22 mm.

● stepping motion

○ travel range: > 5.5 mm

○ minimum step size: < 60 nanometer (nm)

● scanning motion

○ travel range: > 5000 nm

○ minimum step size: < 5 nm

● drive voltage: < 150 Volts (V)

● operational temperature: 0 K to 350 K

● storage temperature: 0 K to 500 K

● material composition

○ Only UHV (UHV denotes ultra-high vacuum)-compatible materials shall be used that permit ultimate attainment of < 1e-11 Torr pressure (10^11 )

○ Only non-magnetic materials shall be used.

● thermal conductivity: The thermal conductivity between a cold sink and the uppermost translation stage shall be at least 30 mW/K (1 mW is 0.001 Watt).

● Suitable electronics shall be included that support the following features:

○ Actuation modes shall include stepping and scanning.

○ No position-based feedback is required (open loop).

○ Both Universal Serial Bus (USB) and Ethernet interfaces shall permit digitally configuring and actuating the translation stages.

○ It shall include an analog input for each stage for voltage-based stage translation with a range of -10 V to + 10 V and a bandwidth of at least 500 Hertz.

○ It shall be powered by 110 to 120 V mains.

The requirements for one (1) y-axis vibration isolation stage are as follows:

● In the specification that follows, we use a coordinate system where the force due to gravity is along the y-direction.

● In the specification that follows, the required performance condition is 4 K unless stated otherwise.

● load bearing capacity for the y-axis: > 5 N

● first-resonance along the y-axis: < 50 Hz, unloaded

● transmissibility along the y-axis: < 0.01 at 1000 Hz, unloaded

● maximum dimensions: The stage extent along the y-direction shall be < 24 mm and and the extent in the two other directions shall be < 50 mm.

● operational temperature: 0 K to 350 K

● storage temperature: 0 K to 500 K

● material composition

○ Only UHV-compatible materials shall be used that permit ultimate attainment of < 1e-11 Torr pressure.

○ Only non-magnetic materials shall be used.

Reporting and Manuals: Documentation related to the operation of the devices shall be included.

The Contractor shall deliver the product 14 weeks after receipt of order. Quoted cost shall include shipping to the Army Research Lab at 2800 Powder Mill Rd. Adelphi, MD 20783.

Commercial Availability Certification

I have evaluated the commercial marketplace and determined that all of the salient characteristics documented below are available in products/services offered in the commercial marketplace.