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Journal of Applied Mathematics and Statistical Applications | Volume: 1
August 23-24, 2018 | London, UK
Applied Physics
3
rd
International Conference on
T
he mid-infrared region (MID-IR) is an extremely interesting
region to study roto-vibrational transitions of molecules.
Possible applications comprise material analysis, quality
control, dynamic measurements, environmental and medical
monitoring applications, forensic testing, analysis of art objects.
Available sources in this region (such as quantum cascade
lasers and lead-salt diode lasers) need cryogenic operation
and/or suffer from strong limitations as for output peak power,
tunability and beam quality. A completely different approach
for MID-IR quantum light generation is the use of doped
insulating crystals as active media. Transition metals like Cr2+
and Fe+2 have already been used as dopant agents for broadly
tunable pulsed emission, but the use of rare earths can widen
the emission wavelength regions available and could permit cw
emission with excellent beam quality. A key role, in this case is
played by the host crystal which must have low phonon energy
to prevent non-radiative quenching of the emission at this
wavelength. For this reason, new types of host crystals must be
investigated and their growth optimized. A brief review of the
stateoftheartandrecentdevelopmentsinthisfieldwillbegiven.
Speaker Biography
Alessandra Toncelli has obtained her PhD in Physics in 1998 at the University
of Pisa. Since 2017, she is an associate professor at the Physics Department of
Pisa. Her scientific interest was initially aimed to the growth and spectroscopy
of crystalline materials for photonic applications in visible and near infrared
regions. In particular, she studied and characterized the optical and spectroscopic
properties of oxide and fluoride crystals with rare earths for laser applications.
She has published more than 160 articles on International journals. She
currently holds an h-index of 41 both in Scopus and in ISI web of knowledge.
e:
alessandra.toncelli@unipi.itAlessandra Toncelli
University of Pisa, Italy
MID and FAR-IR spectroscopy of rare earth ions