Constructed Experimental setup

Photoluminescence Setup:

Operating down to cryogenic temperatures.
Phase locked amplifier/ optical chopping.
Fully automated with LabVIEW.
Small, 13, 7, (2017) .
J. Appl. Phys. 112, 063506 (2012).

Time Resolved Photoluminescence Micro-Stage:

Ti:Sapphire laser / second and third Harmonic generator.
Operating down to cryogenic temperature (87 K).
micro-scale spatial resolution (Thorlabs cage system).
Nano Letters 16 (7), 4616 (2016).
ACS Photonics 3 (11), 2089 (2016).

Simulation of different ocean currents for optical underwater communication:

Experimental simulation of ocean currents of different temperatures and salinities and different mixing.
Injection of air bubbles of different sizes and densities in order to study the different scattering mechanisms of underwater laser beams.
IEEE Photonics Journal 9,2,(2016).
Optics Letters, (accepted).

UV-assisted electrochemical etching setup of gallium nitride nanomembranes:

The UV Xenon lamp excites carriers within the GaN that contributes to the etching of the sample.
A UV filter allows the selective etching of the sacrificial layer.
The electrical connections are to monitor the electrochemical current and potential via 4 point probe measurement.
Small, 13, 7, (2017) .
Adv. Funct. Mater. 24, 16, 2305 (2013).

Nanomembrane stretching stage:

Application of planar biaxial and uniaxial (along different crystallographic orientations) strain within the nanomemrbanes.

Laser diode testing stage:

Measures I-V and L-I characteristics of laser diodes.
The integrating sphere collects the emission for spectrum collection.
The thermo-electric cooler controls the temperature of the diode.
LabView is used for equipment control and data Acquisition

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