Optical Laboratory

Oleg Semyonov supervises an optical laboratory (Room 231, Heavy Engineering) which was established to study the optical and luminescence properties of semiconductors and optoelectronic materials. The laboratory is equipped with all necessary instrumentation for spectral analysis and time-resolved measurements in visual an infrared spectral bands as well as for studying the luminescence excitation by gamma and alpha radiation at various temperatures:

Spectral equipment:

• Spectrophotometer Lambda 950 (Perkin Elmer)
• Monochromator Cornerstone 260 (Newport)
• Spectrometer SF2000 (Ocean Optics)
• Luminescence spectrometer Aminco Bowman II (Thermo Electron Corp.)
• Spectrometer EPP2000 (Stellar Net)

Lasers:

• Q-switched UV (315 um) and green (530 nm) lasers (CrystaLaser)
• Tunable OPO laser 400-2500 nm Opolette 355 I (Opotek)
• A number of CW diode lasers (red and green)

Cryogenic equipment:

• Cryostat VPF-100 (77 K - 400 K) (Janis Corp.)
• Cryostat ST-100FTIR (4 K - 300 K) (Janis Corp.)
• Helium dewar CMSH - 30 (Cryofab)
• Nitrogen dewar LD-25 (Taylor-Wharton)
• Temperature controllers

Vacuum equipment:

• Rough vacuum pump
• Turbo vacuum pump Mini-TASK (Varian)
• Various manometers and vacuummeters

Pressurized gases:

• oxigen, nitrogen, argon

Radiation detectors:

• PMT with nanosecond resolution
• Visible nanosecond silicon detector, model 1621 (New Focus)
• IR nanosecond silicon detector, model 1623 (New Focus)
• Amplified nanosecond silicon detector, model ET-2030A (Electr-Optic Technology)
• Germanium IR detector G-020-H (Electro-Optical Systems)
• Single-photon counter

Hard radiation sources and detectors:

• Am241, 1 uCi
• Ba133, 10 ui
• Cs137, 10 uCi
• Co60,   10 uCi
• Radiation Servey Meter, model 2241 (Ludlum Measurements)

All radiation sources are stored in a lead-screened box.