ATTO Seminar

The ATTO Seminar (formerly UCF Ultrafast Journal Club) meets approximately biweekly to discuss recent research in the department on ultrafast, intense laser science and applications. Each seminar consists of either two 20-minute talks by current students or one 40-minute talk by a postdoc or faculty member. Please contact me ( if you wish to be added to the mailing list.

Upcoming Schedule
Carlos Marante
ASTRA, a transition density matrix approach to the interaction of attosecond radiation with atoms and molecules

Siddhartha Chattopadhyay

Mike Chini
Tutorial: CEP measurement and CEP-dependent processes



*Note: to add the journal club to your Google Calendar account, click the “+” on the lower right hand corner of the calendar.

Past Meetings
Alphonse Marra
A 4-µm, 1.6-mJ, 260-fs, 300-Hz, Cryogenically Cooled Fe:ZnSe-Based Chirped Pulse Amplifier for Driving High-Order Harmonics beyond the Water Window

Chau Truong
Pulse compression with molecular gas-filled hollow-core fibers

UCF Ultrafast Journal Club Meetings
01/28/20 – Nick Cox (Nonlinear Optics group)
The importance of relativistic effects on two-photon absorption spectra in metal halide perovskites

01/14/20 – Seunghwoi Han (iFAST group)
Extraction of higher-order nonlinear electronic response in solids using high harmonic generation

12/2/19 – Afjal Pathan (Vaida group)
Femtosecond time-resolved two-photon photoemission studies of ultrafast carrier relaxation in Cu2O photoelectrodes

11/19/19 – Fangjie Zhou (Chang group)
Table-top high-energy 7 μm OPCPA and 260 mJ Ho:YLF pump laser

11/4/19 – John Beetar (Chini group)
Disentangling conical intersection and coherent molecular dynamics in methyl bromide with attosecond transient absorption spectroscopy

10/22/19 – Arifur Rahaman (Yu group)
Gigantic electric-field-induced second harmonic generation from an organic conjugated polymer enhanced by a band-edge effect

10/7/19 – Coleman Carriker (Argenti group)
Real-Time Reconstruction of the Strong-Field-Driven Dipole Response

09/24/19 – Sabin Regmi (Neupane group)
Colossal mid-infrared bulk photovoltaic effect in a type-I Weyl semimetal

04/09/19 – Mofazzel Hosen (Neupane group)
Excited state band mapping and momentum-resolved ultrafast population dynamics in In/Si(111) nanowires investigated with XUV based time- and angle-resolved photoemission spectroscopy

03/26/19 – Nicolas Douguet (Argenti group)
Orientation-dependent stereo Wigner time delay and electron localization in a small molecule

03/12/19 – Afjal Pathan (Vaida group)
Ultrafast Electron Trapping and Defect-Mediated Recombination in NiO Probed by Femtosecond Extreme Ultraviolet Reflection−Absorption Spectroscopy

02/12/19 – Boyang Zhou (Yu group)
Formation of nanograting in fused silica by temporally delayed femtosecond double-pulse irradiation

01/29/19 – John Beetar (Chini group)
Electronic Wavefunctions Probed by All-Optical Attosecond Interferometry

01/15/19 – Fangjie Zhou (Chang group)
Generation of 1  kHz, 2.3  mJ, 88  fs, 2.5  μm pulses from a Cr2+:ZnSe chirped pulse amplifier

11/14/18 – Mofazzel Hosen (Neupane group)
Evidence for topological defects in a photoinduced phase transition

10/31/18 – Coleman Carriker (Argenti group)
Ultrafast quantum control of ionization dynamics in krypton

10/17/18 – John Beetar (Chini group)
Coherent extreme-ultraviolet emission generated through frustrated tunnelling ionization

10/03/18 – Firoza Kabir (Neupane group)
Observing Topological Phase Transitions with High Harmonic Generation

09/19/18 – Volodymyr Turkowski (Rahman group)
High-Harmonic Generation in Mott Insulators

09/05/18 – Afjal Pathan (Vaida group)
Experimental evidence of exciton capture by mid-gap defects in CVD grown monolayer MoSe2

04/12/18 – Stefan Donsa (Burgdörfer group, Vienna)
“Nonsequential Double Ionization by Counterrotating Circularly Polarized Two-Color Laser Fields”
“Controlling Nonsequential Double Ionization in Two-Color Circularly Polarized Femtosecond Laser Fields”

03/29/18 – Shima Gholam-Mirzaei (Chini group)
“Measurement of the Berry curvature of solids using high-harmonic spectroscopy”

03/01/18 – Coleman Carriker (Argenti group)
“Photoemission in the time and frequency domain”

02/01/18 – Mofazzel Hosen (Neupane group)
“Spin Polarization and Attosecond Time Delay in Photoemission from Spin Degenerate States of Solids”

01/18/18 – John Beetar (Chini group)
“Extended phase matching of high harmonic generation by plasma-induced defocusing”

11/14/17 – Gyanendra Dhakal (Neupane group)
“Direct optical detection of Weyl fermion chirality in a topological semimetal”

10/10/17 – Shima Gholam-Mirzaei (Chini group)
“High Harmonic Generation in Periodically Poled Waveguides”

9/26/17 – Nicolas Douguet (Argenti group)
“High-order harmonic generation from the dressed autoionizing states”

7/27/17 – Sean Buczek (Chini group)
“Ultraviolet surprise: Efficient soft x-ray high-harmonic generation in multiply ionized plasmas”

7/13/17 – Afjal Pathan (Vaida group)
“Ultrafast formation of interlayer hot excitons in atomically thin MoS2/WS2 heterostructures”

6/29/17 – Mofazzel Hosen (Neupane group)
“Direct time-domain observation of attosecond final-state lifetimes in photoemission from solids”

6/15/17 – Shima Gholam-Mirzaei (Chini group)
“Mapping the electron band structure by intraband high-harmonic generation in solids”

5/25/17 – Andrew Chew (Chang group)
“Time-resolved x-ray absorption spectroscopy with a water window high-harmonic source”

5/10/17 – Saad Mehmood (Argenti group)
“Attosecond correlation dynamics”

4/26/17 – Danielle Reyes (Richardson group)
“Laser-guided energetic discharges over large air gaps by electric-field enhanced plasma filaments”

4/5/17 – Coleman Carriker (Argenti group)
“Observing the ultrafast buildup of a Fano resonance in the time domain”

3/22/17 – John Beetar (Chini group)
“Attosecond sampling of arbitrary optical waveforms”