A figure defining and contouring garment, which outlines and defines a wearer’s body contours in a fashionable and comfortable manner, includes a waistband coupled to a body with a rear tunnel that extends along the inside rear of the garment from the lower rise or crotch area to the waistband and a waistband tunnel that extends through the waistband. The methods involve assembly of pre-shaped and pieced together bulk glass elements into preforms for simultaneous fusing and drawing into optical fiber. Methods for performing Raman spectroscopy include using such analyte stages and systems to tune a resonant cavity to resonate Raman scattered radiation that is scattered by an analyte. Furthermore, the heated propellant is choked immediately before being introduced into the ionizationacceleration channel by a throat region provided immediately before the ionizationacceleration channel, and as a result the sonic speed of neutral species is increased. Each of the side walls has a fixed part disposed adjacent to the rear wall and a turning part disposed adjacent to the front wall.