Physics Department | Center For Optical Technologies | Lehigh University  


Prof. Ivan Biaggio
Research
Organics for nonlinear optics
Organic Excitons
Publications
Facilities
People
Teaching
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Laser Safety


Laboratory Facilities

  • A CPA-Series Ti:Sapphire system from Clark-MXR, which pumps a TOPAS system from Light Conversion. We currently have it set up as a 1 ps system that provides tunable output at 1 kHz from the UV to the far IR.
  • An Ekspla System consisting of a picosecond Nd:YAG laser that can emit 80 mJ, 30 ps pulses, and is doubled and tripled in frequency. Its ultraviolet output pumps an optical parametric generator/amplifier system that ultimately delivers 20 picosecond optical pulses with a wavelength that can be tuned from 420 nm to 2 micrometer in the infrared.
  • Degenerate Four Wave Mixing in the phase conjugated configuration and transient grating pump and probe experiments over a time interval of 10 ns and a time resolution of 20 ps.
  • Degenerate Four Wave Mixing in the forward boxcar configuration and transient grating pump and probe experiments over a time interval of 1 ns and a time resolution of 1 ps.
  • Noncollinear Third-order Maker Fringes for the measurement of electronic third-order nonlinear optical susceptibilities.
  • Second-order Maker Fringes for the measurement of second-order nonlinear optical susceptibilities.
  • Transient photoconductivity.
  • Vapor transport growth of organic molecular crystals
  • A high vacuum organic molecular beam deposition system to grow organic thin films.
  • Various ancillary equipment, such as oscilloscopes, gated integrators, photomultipliers, pyroelectric detectors, InGaAs cameras, Silicon and InGaAs picojoule-meters, optical delay lines, fiber coupling systems, ...

Shared facilities in the Physics Laser Spectroscopy Laboratory

  • Up and Down Olympus microscope with several input and output ports that can be used for laser-based nonlinear optical and multiphoton microscopy.
  • A Pharos femtosecond laser that delivers 150 fs pulse trains with a repetition rate tunable between 10 kHz and 200 kHz, and a PicoQuant time-correlated single photon counting system for the measurement of photoluminescence transients.
  • Up and Down olympus microscope with various inputs for laser illumination.
  • Several other laser sources, spectrometers, microscopes, and detectors, including a streak camera working at 1.5 micrometers and the femtosecond/picosecond laser source from Clark MXR mentioned above.

Other facilities



[Image: CPA]

CPA-Series Ti:Sapphire system from Clark-MXR,

[Image: Ekspla]

Nd:YAG laser and OPG/OPA system from Ekspla.

[Image: TOPAS]

TOPAS from Light Conversion

[Image: DFWM scheme]

DFWM scheme

[Image: DFWM experiment]

DFWM set-up

[Image: Multi-wave mixing]

Multi-wave mixing
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Lehigh University Center for Optical Technologies