17 citations · 74 across the 10 of their papers we have counts for
10 papers
A single-lens universal interferometer: Towards a class of frugal optical devices
Pooja Munjal, Kamal P. Singh
The application of precision interferometers is generally restricted to expensive and smooth high-quality surfaces. Here, we offer a route to ultimate miniaturization of interferom…
Fatigueless response of spider draglines in cyclic torsion facilitated by reversible molecular deformation
Bhupesh Kumar, Kamal P. Singh
We demonstrate that spider draglines exhibit a fatigueless response in extreme cyclic torsion up to its breaking limit. The well defined Raman bands at and sh…
Unveiling spatial correlations in biophotonic architecture of transparent insect wings
Pramod Kumar, Danish Shamoon, Dhirendra P. Singh +2
We probe the natural complex structures in the transparent insect wings by a simple, non-invasive, real time optical technique using both monochromatic and broadband femtosecond la…
Sub-microscopic modulation of mechanical properties in transparent insect wings
Ashima Arora, Pramod Kumar, Jithin Bhagavathi +2
We report on the measurement of mechanical properties of the transparent wings of an insect (popularly known as the 'rain fly') using an atomic force microscope (AFM) down to nanom…
Optical probing of long range spatial correlation and symmetry in complex biophotonic architectures on the transparent insect wings
Pramod Kumar, Danish Shamoon, Dhirendra P. Singh +2
We experimentally probe complex bio-photonic architecture of microstructures on the transparent insect wings by a simple, non-invasive, real time optical technique. A stable and re…
Scalable ultra-sensitive detection of heterogeneity via coupled bistable dynamics
Kamal P. Singh, Rajeev Kapri, Sudeshna Sinha
We demonstrate how the collective response of globally coupled bistable elements can strongly reflect the presence of very few non-identical elements in a large array of otherw…
Atomic and Molecular Systems Driven by Intense Chaotic Light
Kamal P Singh, Jan M Rost
We investigate dynamics of atomic and molecular systems exposed to intense, shaped chaotic fields and a weak femtosecond laser pulse theoretically. As a prototype example, the phot…
Femtosecond Photodissociation of Molecules Facilitated by Noise
Kamal P. Singh, Anatole Kenfack, Jan M. Rost
We investigate the dynamics of diatomic molecules subjected to both a femtosecond mid-infrared laser pulse and Gaussian white noise. The stochastic Schrödinger equation with a Mors…
Femtosecond Photoionization of Atoms under Noise
Kamal P. Singh, Jan M. Rost
We investigate the effect of incoherent perturbations on atomic photoionization due to a femtosecond mid-infrared laser pulse by solving the time-dependent stochastic Schrödinger e…
Optimal Stochastic Enhancement of Photoionization
Kamal P. Singh, Jan M. Rost
The effect of noise on the nonlinear photoionization of an atom due to a femtosecond pulse is investigated in the framework of the stochastic Schrödinger equation. A modest amount…