Publlications

T.-C. Truong, Y. Liu, D. Khatri, Y. Zhang, B. Shim, and M. Chini, submitted.

T.-C. Truong, C. Lantigua, Y. Zhang, J. W. Agnes, R. Forbes, B. Shim, and M. Chini, accepted (2024). 

B. Shim, G. C. Nagar, Y. Wu, and Z. Chang, "Generation of high-order harmonics and attosecond pulses in the water window via nonlinear propagation of a few-cycle laser pulse,"  Optics Express 31, 32488 (2023). 

D. Dempsey, G. C. Nagar, J. W. Agnes, Y. Zhang, N. A. Batista, T-C Truong, M. Chini, and B. Shim, "Comparative study of optical nonlinearities of CO2 and N2O via single-shot spatio- temporally-resolved visualization," Optics Communications 545, 129669 (2023). 

G. C. Nagar and B. Shim, "Study of wavelength-dependent pulse self-compression for high intensity pulse propagation in gas-filled capillaries," Optics Express 29, 27416 (2021).

G. C. Nagar, D. Dempsey, and B. Shim, "Wavelength scaling of electron collision time in plasma for strong field laser-matter interactions in solids," Communications Physics 4:96 (2021).

S.-H. Nam, G. C. Nagar,  D. Dempsey, O. Novak, B. Shim, and K.-H. Hong, "Multi-octave-spanning supercontinuum generation through high-energy laser filaments in YAG and ZnSe pumped by a 2.4 μm femtosecond Cr:ZnSe laser," High Power Laser Science and Engineering 9, e12 (2021). 

X. Gao, and B. Shim, "Self-focusing and self-compression of intense pulses via ionization-induced spatiotemporal reshaping," Optics Letters 45, 6434 (2020).

J. E. Beetar, M. Nrisimhamurty, T.-C. Truong, G. C. Nagar, J. Nesper, O. Suarez, Y. Wu, B. Shim and M. Chini, "Multioctave Supercontinuum Generation and Frequency Conversion based on Rotational Nonlinearity,"  Science Advances 6, eabb5375 (2020).

S. Qu, G. C. Nagar, W. Li, K. Liu, X. Zou, S. H. Luen, D. Dempsey,  K.-H. Hong, Q. J. Wang, Y. Zhang, B. Shim, H. Liang, "Long-wavelength-infrared laser filamentation in solids in the near-single-cycle regime," Optics Letters 45, 2175 (2020).

D. Dempsey, G. C. Nagar, C. K. Renskers, R. I. Grynko, J. S. Sutherland, and B. Shim,  "Single-shot ultrafast visualization and measurement of laser matter interactions in flexible glass using frequency domain holography,"  Optics Letters 45, 1252 (2020).

X. Gao, G. Patwardhan, B. Shim, and A. L. Gaeta, "Ionization-assisted refocusing of femtosecond Gaussian beams," Optics Letters 44, 5888 (2019).

X. Gao, B. Shim, and M. C. Downer, “Brunel harmonics generated from ionizing clusters by few-cycle laser pulses,” Optics Letters 44, 779 (2019). 

X. Gao and B. Shim, “Impact-ionization mediated self-focusing of long-wavelength infrared pulses in gases,” Optics Letters 44, 827 (2019). 

R. I. Grynko, G. C. Nagar, and B. Shim,  “Wavelength-scaled laser filamentation in solids and plasma-assisted sub-cycle light-bullet generation in the long-wavelength infrared,” Physical Review A 98, 023844 (2018). 

X. Gao, G. Patwardhan, B. Shim, T. Popmintchev, H. C. Kapteyn, M. M. Murnane, A. L. Gaeta, “Ionization-assisted spatiotemporal localization in gas-filled capillaries,” Optics Letters 43, 3112 (2018). 

R. I. Grynko, D. L. Weerawarne, and B. Shim,  “Effects of higher-order nonlinear processes on harmonic generation phase matching,” Physical Review A 96, 013816 (2017).

R. I. Grynko, D. L. Weerawarne, X. Gao, H. Liang, H. J. Meyer, K-H. Hong, A. L. Gaeta, and B. Shim,  “Inhibition of multi-filamentation of high power laser beams,” Optics Letters 41, 4064 (2016). 

H. Liang, D. L. Weerawarne, P. Krogen, R. I. Grynko, C.- J. Lai , B. Shim, F. X. Kärtner, and K.-H. Hong, “Mid-infrared laser filaments in air at a kHz repetition rate,” Optica 3, 678 (2016).

D. Popmintchev, C. Hernández-García, F. Dollar, C. Mancuso, J. A. Pérez-Hernández, M.-C. Chen, A. Hankla, X. Gao, B. Shim, A. L. Gaeta, M. Tarazkar, D. A. Romanov, R. J. Levis, J. A. Gaffney, M. Foord, S. B. Libby, A. Jaron-Becker, A. Becker, L. Plaja, M. M. Murnane, H. C. Kapteyn, and T. Popmintchev, “Ultraviolet surprise: efficient soft x-ray high harmonic generation in multiply-ionized plasmas,” Science 350, 1225 (2015).

W. Zhao, T. Rovere, D. L. Weerawarne, G. Osterhoudt, N. Kang, P. Joseph, J. Luo, B. Shim, M. Poliks and C.-J. Zhong, “Nanoalloy printed and pulse-laser sintered flexible sensor devices with enhanced stability and materials compatibility,” ACS Nano 9, 6168 (2015).  

H. Liang, P. Krogen, R. Grynko, O. Novak, C.-L. Chang, G. J. Stein, D. Weerawarne, B. Shim, F. X. Kärtner, and K.-H. Hong,“ Three-octave-spanning supercontinuum generation and sub-two-cycle self-compression of mid-infrared filaments in dielectrics,” Optics Letters 40, 1069 (2015).

D. L. Weerawarne, X. Gao, A. L. Gaeta, and B. Shim,  “Higher-order nonlinearities revisited and their effect on harmonic generation,” Physical Review Letters 114, 093901 (2015).

D. J. Clark, V. Senthilkumar, Le C. Tam, D. L. Weerawarne, B. Shim, J. I. Jang, J. H. Shim, J. Cho, Y. Sim, M. -J. Seong, S. H. Rhim, A. J. Freeman, K. -H. Chung, and Y. S. Kim, “Strong optical nonlinearity of CVD-grown MoS2 monolayer as probed by wavelength-dependent second-harmonic generation,” Physical Review B 90, 121409 (R) (2014). 

 X. Gao, A. V. Arefiev, R. C. Korzekwa, X. Wang, B. Shim, and M. C Downer, “Spatio-temporal profiling of cluster mass fraction in a pulsed supersonic gas jet by frequency-domain holography,” Journal of Applied Physics 114, 034903 (2013).

J. I. Jang, S. Park, D. J. Clark, F. O. Saouma, D. Lombardo, C. M. Harrison, and B. Shim, “Impact of two-photon absorption on second harmonic generation in CdTe as probed by wavelength-dependent Z-scan nonlinear spectroscopy,” Journal of the Optical Society of America B 30, 2292 (2013).

K. Saha, Y. Okawachi, B. Shim, J. S. Levy, M. A. Foster, R. Salem, A. R. Johnson, M. R. E. Lamont, M. Lipson, and A. L. Gaeta, “Modelocking and femtosecond pulse generation in chip-based frequency combs,” Optics Express  21, 1335 (2013). 

T. Popmintchev, M.Chen, D. Popmintchev, P. Arpin, S. Ališauskas, G. Andriukaitis, T. Balčiunas, O. Mücke, A. Pugzlys, A. Baltuška, B. Shim, S. E. Schrauth, A. Gaeta, C. Hernández-García, L. Plaja, A. Becker, A. Jaron-Becker, M. Murnane, and H. Kapteyn, “Bright coherent ultrahigh harmonics in the keV x-ray regime from mid-infrared femtosecond lasers,” Science 336, 1287 (2012) .

X. Gao, X. Wang, B. Shim, A. V. Arefiev, R. Korzekwa, B. N. Breizman, and M. C. Downer, “Characterization of cluster/monomer ratio in pulsed supersonic gas jets,” Applied Physics Letters 100, 064101 (2012).

B. Shim, S. E. Schrauth, A. L. Gaeta, M. Klein, and G. Fibich, “Loss-of-phase of collapsing beams,” Physical Review Letters 108, 043902 (2012).

S. E. Schrauth, B. Shim, A. D. Slepkov, L. T. Vuong, A. L. Gaeta, N. Gavish, and G. Fibich, “Pulse-splitting in the anomalous group-velocity dispersion regime,”Optics Express 19, 9309 (2011).

B. Shim, S. E. Schrauth, L. T. Vuong, Y. Okawachi, and A. L. Gaeta, “Dynamics of elliptical beams in the anomalous group-velocity dispersion regime,” Optics Express 19, 9139 (2011).

B. Shim, S. E. Schrauth, and A. L. Gaeta, “Filamentation in air with ultrashort mid-infrared pulses,” Optics Express 19, 9118 (2011).

B. Shim, S. E. Schrauth, C. J. Hensley, L. T. Vuong, P. Hui, A. A. Ishaaya, and A. L. Gaeta, “Controlled interactions of femtosecond light filaments in air,”Physical Review A 81, 061803 (R) (2010).

A. V. Arefiev, X. Gao, M. R. Tushentsov, X. Wang, B. Shim, B. N. Breizman, and M. C. Downer, “Size distribution and mass fraction of microclusters in laser-irradiated plasmas,” High Energy Density Physics 6, 121 (2010).

 A. A. Ishaaya, C. J. Hensley, B. Shim, S. E. Schrauth, K. W. Koch, and A. L. Gaeta, “Highly-efficient coupling of linearly- and radially-polarized femtosecond pulses in hollow-core photonic band-gap fibers,” Optics Express 17, 18630 (2009).

B. Shim, G. Hays, R. Zgadzaj, T. Ditmire, and M. C. Downer, “Enhanced harmonic generation from expanding clusters,” Physical Review Letters 98, 123902 (2007).