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We show that high efficiency stimulated Raman scattering can be obtained using hollow core photonic crystal fiber with the core filled with a low refractive index nonlinear liquid. This new architecture opens new perspectives in the development of nonlinear functions as any kind of nonlinear liquid media can now be used to implement them, with original properties not accessible with silica core fibers.

We report on the experimental demonstration of a white-light supercontinuum generation in normally dispersive singlemode air-silica microstructured fiber. We demonstrate that the simultaneous excitation of the microstuctured fiber in its normal and anomalous dispersion regimes using the fundamental and second harmonic signals of a passively Q-switched microchip laser leads to a homogeneous supercontinuum in the visible range. This pumping scheme allows the suppression of the cascaded Raman effect predominance in favor of an efficient spectrum broadening induced by parametric phenomena. A flat supercontinuum extended from 400 to 700 nm is achieved.

International university students can experience isolation amid academic pressures. Such circumstances can manifest as or exacerbate depression. This qualitative study involved 15 international male students at a Canadian university who were diagnosed or self-identified as having depression. Individual interviews revealed men's perspectives about causes, implications, and management of depression. Participants intertwined sex- and gender-based factors in detailing causes, and emphasized the potential for parents to impact depression. Implications of depression for embodying traditional masculine roles of breadwinner and career man influenced many men to filter details about their illness within "home" cultures. This practice often prevailed within Canada despite the men's perceptions that greater societal acceptance existed. Masculine ideals underpinned self-management strategies to fight depression and regain control. Counter to men's reluctance to disclose illness details were participants' self-management preference for peer-based support. Study findings highlight how masculine ideals and cultural constructs can influence depression experiences and expressions.