Atomic, Molecular and Optical Physics Labs

Astrochemistry Laboratory
Experimental Astrochemistry & Astrobiology. Investigating the chemical changes induced in low temperature astrochemical ices by electrons, ions (single and multiple charged),dust impacts and shockwaves. Infrared (IR) and Vacuum Ultraviolet (VUV) spectroscopy of astrochemical ice analogs.

Simulator for Astromolecules at Low Temperature (SALT) enables us to recreate the cold dust and icy mantle conditions in the interstellar medium.

High Intensity Shock Tube for Astrochemistry (HISTA) enables us to recreate the shock environment experienced in the interstellar medium and the impact induced shock in the solar system objects. 

Simulator for Astro-molecules at Low Temperature (SALT)

High Intensity Shock Tube for Astrochemistry (HISTA)

Discovering a new class of Astrochemical ices that behave very differently with respect to their phase transition.

Synthesized Graphene and quantum dot in Astrochemical Ices

Created Complex structures by Shock Processing of nucleobases

Only Lab in India that is pursuing Astrochemistry from 8 K to 16k K.
Femtosecond Laser Laboratory
Performing Atomic and Molecular Experiments in time domain ranging from picosecond to femtosecond.

We study the ultrafast dynamical processes in atomic and molecular systems
using femtosecond laser pulses. In atoms and molecules, the time scale of
nuclear dynamics ranges from picosecond to femtosecond while it is
attosecond for electron dynamics. We study these ultrafast dynamical
processes with a view to control them during reactions, leading to
formation of new molecules.

1. Femtosecond laser(Carrier Envelope Phase (CEP) stabilized): 800nm,
25fs, 10mJ at 1KHz and 3mJ at 5KHz.

2. Velocity Map Imaging Spectrometer.

3. Spectral Phase Interferometry for Direct Electric-field Reconstruction
(SPIDER) for femtosecond pulse characterization.

4. Grating-eliminated no-nonsense observation of ultrafast incident laser
light e-fields (GRENOUILLE) for pulse characterization.

Equipments are installed on anti-vibration floor isolation area and in cleanroom (ISO 7).
Luminescence Physics and Applications Group
To understand the physics of luminescence process in natural and synthetic materials and use it for radiation dosimetry and study earth surface processes

Luminescence laboratory was started in 1977 by Professor Ashok K. Singhvi. It is the first luminescence dating laboratory of the country which pioneered in understanding the luminescence physics and apply it for geological and archaeological studies. The laboratory assisted in establishing more than 12 laboratories across India. The laboratory is constantly involved in improving the existing methodologies and exploring new domains of application of luminescence.

TL/OSL reader: Risoe TL OSL readers are used for dosimetry.
The TL OSL readers in luminescence lab are equipped with
the facilities as multispectral stimulations (green, blue, violet
and IR) and multispectral detection (UV, red, blue and visible)
along with single grain IR and green stimulation lasers, fine
grain calibration, radioluminescence, time resolved
Magnetic Separator: Frantz Magnetic separator is used to
separate minerals with variable magnetic susceptibility.
Grinder: Pulveriser is used to grind the sample to submicron
Sieve shaker: Sieve shaker is used for separation of particles
based on their size.

  • Pioneered in dating desserts across the world.
  • Applied the technique to estimate cosmic exposure ages of meteorites
  • Pioneered in development of spatially resolved luminescence system
  • Challenged existing theory of human evolution and migration
  • Applied the technique to address geological issues as, desert evolution, palaeoclimate, glaciers advancement, tectonics, tsunami, fulgurites, coastal dunes etc.

  • First luminescence laboratory in India
  • Only laboratory in India equipped with multiple sophisticated instruments having facilities as infrared radiofluorescence, single grain system with IR and green stimulation facility, violet stimulated luminescence, variable stimulation and detection assembly, EMCCD based spatially resolved luminescence system
  • One of the 4 laboratories of world having calibrated alpha irradiation source for luminescence efficiency estimation
  • One of the few laboratories in India capable of executing fine grain luminescence dating.

  • Photonic Sciences Laboratory