New Pulse Counter/Interval Timer
Discriminate pulse events from a noise background, for
pulses of amplitude 10 mV to > 1 Volt
Correctly count 'events per unit time', with 0.1, 1.0, or
10-second counting intervals
Alternatively, measure the time interval between a pulse and
its successor pulse, to 1- µs resolution
Write date files of unlimited length of successive counts per unit
time, or intervals between successive counts.

Photodiode Photodetectors

Large Area Photodetector with Base
Developed for Modern Interferometry
Silicon Pin photodiode OSI Optoelectronics model # PIN 10D1
Spectral range: 400 - 1,000 nm
Active area: 100 mm2, 11.3 mm diameter
Responsivity at 800 nm: 0.6 A/W
Gain: 2 x 203 to 12 x 106 V/A (10 steps; 1, 2, 5, 10 sequence)
Bandwidth 200 kHz to 5 kHz (gain dependent)
Requires Power Supply: ±5 to ± 15 V

Small Area Photodetector with Base
Developed for Diode Laser Spectroscopy and Optical Pumping
Silicon Pin photodiode OSI Optoelectronics model # PDB-C108
Spectral Range 400 - 1,000 nm
Active area 31 mm2, 6.2 mm diameter
Responsivity at 800 nm: 0.6 A/W
Gain: 333 - 107 V/A (10 steps; 1, 3.3, 10 sequence)
Bandwidth 500 kHz - 5kHz (gain dependent)
< li>Requires power supply:±5 to ± 15 V

High-Stability Proprietary Flexure Mirror Mounts with Base and Extra Mirror
Developed for Modern Interferometry
Allow only one degree of freedom
Order any combination of Horizontal and Vertical tilt
Mirror can be set at 90, 45, or 22.5 degrees to breadboard dimension

High-Stability Proprietary Flexure Translation Stage
Proprietary High-Stability Flexure Translation Stage Developed for Modern Interferometry
Allows ±1 mm of pure translation preserving full fringe contrast
Enables counting of hundreds or thousands of fringes
Can be used with standard or flexure mirror mounts
Includes push-rod and v-block kit
Adaptable to standard or differential micrometer for control or calibration

Magnetostriction Kit
Custom solenoid
Includes three samples: Copper, Iron, Nickel
Requires Flexure Translation Kit
(shown with proprietary mirror mount)

Differential Pressure Transducer
Developed for Modern Interferometry
Honeywell model # 26PCCFA6D sensor
Maximum pressure difference: ± 1 atm.
Output: ± 10V = ± 1 atmosphere
Requires power supply ±12 - ± 15 Volts


Grating Stabilized Diode Laser Head with Controller and three tested diodes
Developed for Diode Laser Spectroscopy
Includes 3 tested diodes
Temperature Controlled
Removable Grating
Sanyo DL-7140-201S infrared diode laser
Maximum Power: 70 mW
Wavelength range: 15 nm coarse, 10 GHz fine
Temperature Range: 0 - 60 C
Current; 0 - 100 mA, Noise ‹ 0.5 µA rms
Piezo modulation: 0 - 100 V
Ramp Gen: 1 mHz - 10 kHz, 0 - 10 Vp-p

Rubidium RF Discharge Lamp
Developed for Optical Pumping
Mounted in 120° C temperature regulated oven
Rb Bulb 9 mm diameter
Natural isotopic concentration
3 Torr Xenon buffer
RF Oscillator 75 - 90 MHz
Optical power at 795 nm › 1mW/steradian
Power Requirements: 28 V @ 0.5 A, user supplied

Mounted Interference Filter for Optical Pumping
Developed for Optical Pumping
Intor model #805/35/75-8U
Center wave length: 805 nm
Spectral Width: 35 nm
Peak transmission: 75%
Transmission: at 795 nm › 75%; at 780 nm ‹ 5%
Diameter: 2 inches
Available with .5" stainless steel or .25" Delrin post

VARIOUS INDIVIDUAL COMPONENTS